I don't see a php.ini or a global.php anywhere.
display_errors = On
Set error_reporting to E_ALL ^E_NOTICE in php.ini or add to the top of global.php error_reporting(E_ALL ^E_NOTICE);
1. Search in Xampp folder (ctrl+f) type in "php.ini" then open it.
2. After that press ctrl+f and search below code.
3. Change "On" to "Off"Code:display_errors = On
Hope this work, best of luck!