Notice: Undefined index: uid in C:\inetpub\wwwroot\ETZ19\workshop-detail.php on line 58

Fatal error: Uncaught Error: Call to a member function fetch_assoc() on boolean in C:\inetpub\wwwroot\ETZ19\workshop-detail.php:60 Stack trace: #0 {main} thrown in C:\inetpub\wwwroot\ETZ19\workshop-detail.php on line 60