Warning: Undefined variable $conn in C:\xampp\htdocs\vertion\ServTrackOld\ServiceEditUser.php on line 70

Fatal error: Uncaught Error: Call to a member function prepare() on null in C:\xampp\htdocs\vertion\ServTrackOld\ServiceEditUser.php:70 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vertion\ServTrackOld\ServiceEditUser.php on line 70