Fatal error: Uncaught Error: Class "OpenTelemetry\Context\ZendObserverFiber" not found in C:\xampp\htdocs\ducev\vendor\open-telemetry\context\fiber\initialize_fiber_handler.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ducev\vendor\open-telemetry\context\fiber\initialize_fiber_handler.php on line 16