Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Validation\ValidationRule" not found in /home/tennisleaguegntf/tournaments.gntf.com/app/Rules/EventDateWithinTournament.php:10 Stack trace: #0 {main} thrown in /home/tennisleaguegntf/tournaments.gntf.com/app/Rules/EventDateWithinTournament.php on line 10