Pfthb

I am a novice in the Android Studio development and I am facing with a problem when a try to save a picture's path into the SQLite Database.
I get an error "java.io.FileNotFoundException" even though the path and the file are the same as in the phones' folder,
I do not understand why I am having this problem, can someone explain to me what am I missing?
java.io.FileNotFoundException
Column_index:0
DataBaseHelper.java

public boolean InsertImage(File x)
SQLiteDatabase db = this.getWritableDatabase();
try 
 FileInputStream fs = new FileInputStream(x);
 byte imgbyte = new byte[fs.available()];
 fs.read(imgbyte);
 ContentValues contentValues = new ContentValues();
 contentValues.put("img",imgbyte);
 db.insert(TABLE_NAME_USERS,"Avatar",contentValues);
 fs.close();
 return true;
 catch (IOException e)
 e.printStackTrace();
 return false;

SignIn.java

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
 ImageView AvatarImage = findViewById(R.id.AvatarImage);
 super.onActivityResult(requestCode, resultCode,data);
 if(requestCode == REQUEST_CODE && data != null && data.getData() != null)
 Uri uri = data.getData();
 String path = uri.getPath(); // "/mnt/sdcard/FileName.mp3"
 File file = new File((path));
 String x = getPath(uri);
 myDb.InsertImage(file);
 try 
 Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(),uri);
 AvatarImage.setImageBitmap(bitmap);
 catch (IOException e) 
 e.printStackTrace();
 
 


public String getPath(Uri uri)
 if (uri==null)return null;
 String projection = MediaStore.Images.Media.DATA;
 Cursor cursor = managedQuery(uri,projection,null,null,null);
 if (cursor!=null)
 int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
 cursor.moveToFirst();
 String dede = cursor.getString(column_index);
 return cursor.getString(column_index);
 
 return uri.getPath();

uninstall and install the application or change the db version .because debugger compile or create your db only once or when db version has been changed.
so when you start to compile your program there isn't any change in your database for example new tables won't be added.