try2

PlaysRUs2/app/src/main/java/com/example/playsrus/signup.java

@@ -28,7 +28,7 @@ public class signup extends AppCompatActivity {
         setContentView(R.layout.signup);
         EditText signupusername = (EditText)findViewById(R.id.signupusername);
         EditText signuppassword = (EditText)findViewById(R.id.signuppassword);
-        EditText repeatpassword = (EditText)findViewById(R.id.repeatpassword);
+        EditText repeatthepassword = (EditText)findViewById(R.id.repeatpassword);
         Button signupsubmit = (Button)findViewById(R.id.signupsubmit);
         Button signupback = (Button)findViewById(R.id.signupback);
         database = new Database(this);
@@ -37,7 +37,7 @@ public class signup extends AppCompatActivity {
             public void onClick(View view) {
                 String username = signupusername.getText().toString();
                 String password = signuppassword.getText().toString();
-                String repeat = repeatpassword.getText().toString();
+                String repeat = repeatthepassword.getText().toString();
 
                 if(username.equals("")||password.equals("")||repeat.equals(""))
                     Toast.makeText(signup.this, "Username or Password is incorrect. Please try again.", Toast.LENGTH_SHORT).show();