Fatal error: Uncaught Error: Class 'Illuminate\Validation\ValidationException' not found in /home/clademy/lms.clademy.com/vendor/maatwebsite/excel/src/Validators/ValidationException.php:7 Stack trace: #0 {main} thrown in /home/clademy/lms.clademy.com/vendor/maatwebsite/excel/src/Validators/ValidationException.php on line 7