App stops when opening after opening new fragment

Question

Please consider I am new to developing apps in Android Studio.

I tried to add a fragment to an existing application responsible for creating, updating, and deleting tasks. After making a few changes, I wanted to try to test the code, but I could not open the fragment anymore in the emulator. I can still open the other fragments while running the application.

I tried to fix the problem myself, but I do not know where the issue is.

package com.example.connectedfamily.ui.taskManagement;

import androidx.lifecycle.ViewModelProvider;

import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;

import com.example.connectedfamily.R;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

import java.text.DateFormat;
import java.util.Date;

public class TaskManagementFragment extends Fragment {

    TaskManagementViewModel mViewModel;
    TaskManager taskManager;

    EditText newTaskEditText;
    ImageView sendButton;


    FirebaseDatabase firebaseDatabase;
    DatabaseReference reference;

    public static TaskManagementFragment newInstance() { return new TaskManagementFragment(); }

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
                             @Nullable Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_task_management, container, false);
        newTaskEditText = newTaskEditText.findViewById(R.id.enterTask);
        sendButton = sendButton.findViewById(R.id.sendButton);
        initClickListeners();

        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        mViewModel = new ViewModelProvider(this).get(TaskManagementViewModel.class);

    }

    /**
     * Initializes the click listeners
     */
    protected void initClickListeners()
    {
        sendButton.setOnClickListener(view -> onSendButtonClick());
    }

    /**
     * defines behaviour after clicking on the send button
     */
    protected void onSendButtonClick()
    {
        firebaseDatabase = FirebaseDatabase.getInstance();
        String newTask = newTaskEditText.getText().toString();
        reference = FirebaseDatabase.getInstance().getReference().child("tasks");

        //check if user entered empty string
        if (newTask != null && !newTask.isEmpty())
        {
            mViewModel.setName(newTask);
            mViewModel.setId(reference.push().getKey());
            mViewModel.setDate(DateFormat.getDateInstance().format(new Date()));
            taskManager.addTask(mViewModel);
            newTaskEditText.getText().clear();

            reference.child(mViewModel.getId()).setValue(mViewModel).addOnCompleteListener(new OnCompleteListener<Void>() {
                @Override
                public void onComplete(@NonNull Task<Void> task) {

                    if (task.isSuccessful())
                    {
                        Toast.makeText(getContext().getApplicationContext(), "Task was processed successfully", Toast.LENGTH_SHORT).show();
                    }
                    else
                    {
                        String error = task.getException().toString();
                        Toast.makeText(getContext().getApplicationContext(), "Update failed "+error, Toast.LENGTH_SHORT).show();
                    }
                }
            });

        }
        else
        {
            Toast.makeText(getContext().getApplicationContext(), "Input is invalid", Toast.LENGTH_SHORT).show();
        }
    }
}

package com.example.connectedfamily.ui.taskManagement;

import androidx.lifecycle.ViewModel;

public class TaskManagementViewModel extends ViewModel {


    String name;
    String date;
    String id;


    /**
     * gets the name of the task
     * @return the name
     */
    public String getName()
    {
        return name;
    }

    /**
     * sets the name
     * @param argName the name to be set
     */
    public void setName(String argName)
    {
        this.name = argName;
    }

    /**
     * get the date of the task
     * @return the date
     */
    public String getDate()
    {
        return date;
    }

    /**
     * set the date of the task
     * @param argDate the argDate
     */
    public void setDate(String argDate)
    {
        this.date = argDate;
    }

    /**
     * gets the id of the task
     * @return the id
     */
    public String getId()
    {
        return id;
    }

    /**
     * sets the id of the new task
     * @param argId the id
     */
    public void setId(String argId)
    {
        this.id = argId;
    }
}

package com.example.connectedfamily.ui.taskManagement;

import java.util.ArrayList;

public class TaskManager {

    ArrayList<TaskManagementViewModel> tasks;

    /**
     * adds a new task to the list
     * @param task to add
     */
    public void addTask(TaskManagementViewModel task)
    {
        tasks.add(task);
    }

    /**
     * deletes task from the current list
     * @param task to delete
     */
    public void deleteTask(TaskManagementViewModel task)
    {
        tasks.remove(task);
    }

    /**
     * returns the list with all available tasks
     * @return the tasks
     */
    public ArrayList<TaskManagementViewModel> getListOfTasks()
    {
        return tasks;
    }

    /**
     * returns the number of available tasks
     * @return integer number of tasks
     */
    public int getAmountOfTasks()
    {
        return tasks.size();
    }

}

Here is a part of the log:

java.io.IOException: Error code 5: Access denied at com.android.tools.idea.diagnostics.windows.WindowsDefenderRegistryStatusProvider.readExcludedPaths(WindowsDefenderRegistryStatusProvider.java:62) at com.android.tools.idea.diagnostics.windows.WindowsDefenderRegistryStatusProvider.getExcludedPaths(WindowsDefenderRegistryStatusProvider.java:49) at com.android.tools.idea.diagnostics.WindowsPerformanceHintsChecker.getExcludedPatterns(WindowsPerformanceHintsChecker.java:242) at com.android.tools.idea.diagnostics.WindowsPerformanceHintsChecker.checkWindowsDefender(WindowsPerformanceHintsChecker.java:128) at at java.base/java.lang.Thread.run(Thread.java:829)

Caused by: com.sun.jna.platform.win32.Win32Exception: Access denied at com.sun.jna.platform.win32.Advapi32Util.registryGetValues(Advapi32Util.java:2236) at com.sun.jna.platform.win32.Advapi32Util.registryGetValues(Advapi32Util.java:2215) at com.android.tools.idea.diagnostics.windows.WindowsDefenderRegistryStatusProvider.readExcludedPaths(WindowsDefenderRegistryStatusProvider.java:57) ... 15 more

If you need other code to understand where the issue is, please don't hesitate and let me know.

This message also appears in the log after opening the fragment:

INFO - run.AndroidLogcatOutputCapture - startCapture("Pixel_5_API_30 [emulator-5222]") 
INFO - run.AndroidLogcatOutputCapture - stopCapture("Pixel_5_API_30 [emulator-5222]") 
INFO - run.AndroidLogcatOutputCapture - stopAll()