Notice: Undefined index: userName in C:\xampp\htdocs\tools\account\changeUsername.php on line 6

Notice: Undefined index: newusr in C:\xampp\htdocs\tools\account\changeUsername.php on line 7

Notice: Undefined index: password in C:\xampp\htdocs\tools\account\changeUsername.php on line 8

Old username:
New username:
Password: