Fatal error: Uncaught Error: Interface "pvc\interfaces\validator\ValTesterInterface" not found in I:\www\pvcDisplay\vendor\pvc\html\src\val_tester\AreaCoordsTester.php:18 Stack trace: #0 {main} thrown in I:\www\pvcDisplay\vendor\pvc\html\src\val_tester\AreaCoordsTester.php on line 18