diff --git a/app/src/main/java/de/jg_cody/Teraplex/MainActivity.java b/app/src/main/java/de/jg_cody/Teraplex/MainActivity.java
index 45176c3..52aa67c 100644
--- a/app/src/main/java/de/jg_cody/Teraplex/MainActivity.java
+++ b/app/src/main/java/de/jg_cody/Teraplex/MainActivity.java
@@ -65,9 +65,9 @@ import java.util.Objects;
 
 import de.jg_cody.Teraplex.ui.credits.CreditsFragment;
 import de.jg_cody.Teraplex.ui.settings.SettingsFragment;
-import de.jg_cody.Teraplex.ui.tabs.TabsFragment;
 import de.jg_cody.Teraplex.ui.tabs.ListAdapter;
 import de.jg_cody.Teraplex.ui.tabs.ListItem;
+import de.jg_cody.Teraplex.ui.tabs.TabsFragment;
 
 
 public class MainActivity extends AppCompatActivity {
@@ -216,8 +216,14 @@ public class MainActivity extends AppCompatActivity {
 
                                     // Specifying a listener allows you to take an action before dismissing the dialog.
                                     // The dialog is automatically dismissed when a dialog button is clicked.
-                                    .setPositiveButton(android.R.string.yes, null )
-                                    .create();
+                                    .setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener() {
+                                        @Override
+                                        public void onClick(DialogInterface dialogInterface, int i) {
+                                            Vibrator vr = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+                                            assert vr != null;
+                                            vr.vibrate(100);
+                                        }
+                                    }).create();
                             Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
                             mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
                             mDialog.show();
@@ -232,8 +238,14 @@ public class MainActivity extends AppCompatActivity {
 
                                     // Specifying a listener allows you to take an action before dismissing the dialog.
                                     // The dialog is automatically dismissed when a dialog button is clicked.
-                                    .setPositiveButton(android.R.string.yes, null )
-                                    .create();
+                                    .setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener() {
+                                        @Override
+                                        public void onClick(DialogInterface dialogInterface, int i) {
+                                            Vibrator vr = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+                                            assert vr != null;
+                                            vr.vibrate(100);
+                                        }
+                                    }).create();
                             Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
                             mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
                             mDialog.show();
@@ -461,8 +473,36 @@ public class MainActivity extends AppCompatActivity {
     public void menurighttopdocumentation(MenuItem i) {
         Vibrator vr = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
         vr.vibrate(100);
-        Intent in = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.jg-cody.de/"));
-        startActivity(in);
+        AlertDialog mDialog = new AlertDialog.Builder(this)
+                .setTitle(getString(R.string.menu_documentation))
+                .setMessage(getString(R.string.you_will_be_redirected))
+
+                // Specifying a listener allows you to take an action before dismissing the dialog.
+                // The dialog is automatically dismissed when a dialog button is clicked.
+                .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                        Vibrator vr = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+                        vr.vibrate(100);
+                        Intent in = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.jg-cody.de/"));
+                        startActivity(in);
+                    }
+                })
+
+                // A null listener allows the button to dismiss the dialog and take no further action.
+                .setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        Vibrator vr = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+                        assert vr != null;
+                        vr.vibrate(100);
+
+                    }
+                }).create();
+        Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
+        mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
+        mDialog.show();
+
+
     }
 
     public void menurighttopcloseapp(MenuItem i) {
diff --git a/app/src/main/java/de/jg_cody/Teraplex/ui/home/HomeFragment.java b/app/src/main/java/de/jg_cody/Teraplex/ui/home/HomeFragment.java
index d6e6c96..bd6c8a7 100644
--- a/app/src/main/java/de/jg_cody/Teraplex/ui/home/HomeFragment.java
+++ b/app/src/main/java/de/jg_cody/Teraplex/ui/home/HomeFragment.java
@@ -124,8 +124,14 @@ public class HomeFragment extends Fragment {
 
                             // Specifying a listener allows you to take an action before dismissing the dialog.
                             // The dialog is automatically dismissed when a dialog button is clicked.
-                            .setPositiveButton(android.R.string.yes, null)
-                            .create();
+                            .setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener() {
+                                @Override
+                                public void onClick(DialogInterface dialogInterface, int i) {
+                                    Vibrator vr = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+                                    assert vr != null;
+                                    vr.vibrate(100);
+                                }
+                            }).create();
                     Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
                     mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
                     mDialog.show();
@@ -154,7 +160,7 @@ public class HomeFragment extends Fragment {
                                 channel.connect(3 * 1000);
                                 session.disconnect();
                                 System.out.println("DISCONNECT");
-                                getActivity().runOnUiThread(new Runnable() {
+                                requireActivity().runOnUiThread(new Runnable() {
                                     @Override
                                     public void run() {
                                         Toast.makeText(getContext(), "CONNECTED", Toast.LENGTH_SHORT).show();
@@ -179,11 +185,27 @@ public class HomeFragment extends Fragment {
                                     }
                                 });
                             } catch (Exception e) {
-                                getActivity().runOnUiThread(new Runnable() {
+                                requireActivity().runOnUiThread(new Runnable() {
                                     @Override
                                     public void run() {
                                         e.printStackTrace();
-                                        Toast.makeText(getContext(), "INVALID INPUT", Toast.LENGTH_SHORT).show();
+                                        AlertDialog mDialog = new AlertDialog.Builder(getContext())
+                                                .setTitle(getString(R.string.unable_to_connect))
+                                                .setMessage(getString(R.string.try_again))
+
+                                                // Specifying a listener allows you to take an action before dismissing the dialog.
+                                                // The dialog is automatically dismissed when a dialog button is clicked.
+                                                .setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener() {
+                                                    @Override
+                                                    public void onClick(DialogInterface dialogInterface, int i) {
+                                                        Vibrator vr = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+                                                        assert vr != null;
+                                                        vr.vibrate(100);
+                                                    }
+                                                }).create();
+                                        Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
+                                        mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
+                                        mDialog.show();
                                     }
                                 });
 
@@ -233,7 +255,7 @@ public class HomeFragment extends Fragment {
 
                         // Specifying a listener allows you to take an action before dismissing the dialog.
                         // The dialog is automatically dismissed when a dialog button is clicked.
-                        .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
+                        .setPositiveButton(getString(R.string.yes), new DialogInterface.OnClickListener() {
                             public void onClick(DialogInterface dialog, int which) {
                                 Vibrator vr = (Vibrator) v.getContext().getSystemService(Context.VIBRATOR_SERVICE);
                                 assert vr != null;
@@ -251,8 +273,14 @@ public class HomeFragment extends Fragment {
                         })
 
                         // A null listener allows the button to dismiss the dialog and take no further action.
-                        .setNegativeButton(android.R.string.no, null)
-                        .create();
+                        .setNegativeButton(getString(R.string.no), new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialogInterface, int i) {
+                                Vibrator vr = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+                                assert vr != null;
+                                vr.vibrate(100);
+                            }
+                        }).create();
                 Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
                 mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
                 mDialog.show();
@@ -293,8 +321,14 @@ public class HomeFragment extends Fragment {
                         })
 
                         // A null listener allows the button to dismiss the dialog and take no further action.
-                        .setNegativeButton(android.R.string.no, null)
-                        .create();
+                        .setNegativeButton(getString(R.string.no), new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialogInterface, int i) {
+                                Vibrator vr = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+                                assert vr != null;
+                                vr.vibrate(100);
+                            }
+                        }).create();
                 Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
                 mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
                 mDialog.show();
@@ -307,7 +341,7 @@ public class HomeFragment extends Fragment {
             togglepassword.setOnTouchListener(new View.OnTouchListener() {
                 @Override
                 public boolean onTouch(View view, MotionEvent motionEvent) {
-                    if (isPasswordVisible == true) {
+                    if (isPasswordVisible) {
                         passwordInput.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
                         isPasswordVisible = false;
                     } else {
diff --git a/app/src/main/java/de/jg_cody/Teraplex/ui/settings/SettingsFragment.java b/app/src/main/java/de/jg_cody/Teraplex/ui/settings/SettingsFragment.java
index 2d1d5af..2728d05 100644
--- a/app/src/main/java/de/jg_cody/Teraplex/ui/settings/SettingsFragment.java
+++ b/app/src/main/java/de/jg_cody/Teraplex/ui/settings/SettingsFragment.java
@@ -91,8 +91,14 @@ public class SettingsFragment extends Fragment {
                         })
 
                         // A null listener allows the button to dismiss the dialog and take no further action.
-                        .setNegativeButton(android.R.string.no, null)
-                        .create();
+                        .setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialogInterface, int i) {
+                                Vibrator vr = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+                                assert vr != null;
+                                vr.vibrate(100);
+                            }
+                        }).create();
                 Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
                 mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
                 mDialog.show();
diff --git a/app/src/main/java/de/jg_cody/Teraplex/ui/terminal/TerminalFragment.java b/app/src/main/java/de/jg_cody/Teraplex/ui/terminal/TerminalFragment.java
index dcb82f5..d75ee0e 100644
--- a/app/src/main/java/de/jg_cody/Teraplex/ui/terminal/TerminalFragment.java
+++ b/app/src/main/java/de/jg_cody/Teraplex/ui/terminal/TerminalFragment.java
@@ -1,8 +1,11 @@
 package de.jg_cody.Teraplex.ui.terminal;
 
+import android.app.AlertDialog;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.os.Vibrator;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -18,6 +21,8 @@ import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.lifecycle.ViewModelProvider;
 
+import java.util.Objects;
+
 import de.jg_cody.Teraplex.R;
 
 public class TerminalFragment extends Fragment {
@@ -42,8 +47,24 @@ public class TerminalFragment extends Fragment {
         user = prefs.getString("user", null);
         password = prefs.getString("password", null);
         ip = prefs.getString("ip", null);
-        if (user == null || ip == null) {
-            Toast.makeText(getContext(), getString(R.string.login_saved), Toast.LENGTH_SHORT).show();
+        if (user == null || ip == null || password == null) {
+            AlertDialog mDialog = new AlertDialog.Builder(getContext())
+                    .setTitle(getString(R.string.unable_to_connect))
+                    .setMessage(getString(R.string.please_login))
+
+                    // Specifying a listener allows you to take an action before dismissing the dialog.
+                    // The dialog is automatically dismissed when a dialog button is clicked.
+                    .setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialogInterface, int i) {
+                            Vibrator vr = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+                            assert vr != null;
+                            vr.vibrate(100);
+                        }
+                    }).create();
+            Objects.requireNonNull(mDialog.getWindow()).setBackgroundDrawableResource(R.drawable.button_round);
+            mDialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimation; //style id
+            mDialog.show();
 
         }
         else {
@@ -74,7 +95,6 @@ public class TerminalFragment extends Fragment {
                     {
                         if (terminal != null) {
                             terminal.sendTerminalCommand(terminal_edit_text.getText().toString());
-                            Toast.makeText(getContext(), getString(R.string.login_saved), Toast.LENGTH_SHORT).show();
                         }
 
                         handled=true;
diff --git a/app/src/main/res/layout/fragment_terminal.xml b/app/src/main/res/layout/fragment_terminal.xml
index 7c7ad2f..6701ed2 100644
--- a/app/src/main/res/layout/fragment_terminal.xml
+++ b/app/src/main/res/layout/fragment_terminal.xml
@@ -56,7 +56,7 @@
         android:layout_marginStart="10dp"
         android:layout_marginBottom="10dp"
         android:ems="10"
-        android:hint="type commands"
+        android:hint="TYPE YOUR COMMAND"
         android:imeOptions="actionDone"
         android:inputType="text"
         android:textColor="#FFFFFF"
@@ -71,6 +71,7 @@
         android:layout_marginEnd="10dp"
         android:layout_marginBottom="10dp"
         android:background="@drawable/button_right"
+        app:backgroundTint="@null"
         android:text="SEND"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent" />
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d798896..adbfdae 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -24,17 +24,17 @@
     <string name="felder_dürfen_nicht_leer_sein">INPUTFIELDS CANT BE EMPTY!</string>
     <string name="login_saved">LOGIN-DATA SAVED!</string>
 
-    //konsole
+    //terminal
     <string name="console">CONSOLE</string>
     <string name="button_send_command">SEND COMMAND</string>
     <string name="servercommands">SERVERCOMMANDS</string>
     <string name="reboot">REBOOT</string>
     <string name="shutdown">SHUTDOWN</string>
+    <string name="unable_to_connect">UNABLE TO CONNECT</string>
+    <string name="try_again">PLEASE TRY AGAIN</string>
 
-    //zeitgesteuerte kommandos
-    <string name="timed_commands">TIMED COMMANDS</string>
+    //main
     <string name="command">COMMAND</string>
-    <string name="send_timed_command">SET TIMED COMMAND</string>
 
     //settings
     <string name="farben">COLORS</string>
@@ -70,6 +70,8 @@
     <string name="menu_add">ADD TAB</string>
     <string name="menu_remove">REMOVE TABS</string>
 
+    //menus
+    <string name="you_will_be_redirected">YOU WILL BE REDIRECTED TO THE APP-DOCUMENTATION ON OUR WEBSITE</string>
     <string name="menu_settings">SETTINGS</string>
     <string name="menu_documentation">QUESTION</string>
     <string name="menu_about">ABOUT</string>
@@ -77,6 +79,8 @@
     <string name="menu_language">LANGUAGE</string>
     <string name="menu_close">CLOSE</string>
 
+    <string name="yes">YES</string>
+    <string name="no">NO</string>
     <string name="ok">OK</string>
     <string name="cancel">CANCEL</string>
     <string name="invalid">INVALID INPUT</string>