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Fatal error: Uncaught Error: Call to a member function prepare() on null in B:\xampp\htdocs\Belanda\MASTER\sipp\includes\user.inc.php:40 Stack trace: #0 B:\xampp\htdocs\Belanda\MASTER\sipp\profil.php(7): User->readOne() #1 {main} thrown in B:\xampp\htdocs\Belanda\MASTER\sipp\includes\user.inc.php on line 40