Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Queue\ShouldBeUnique' not found in /var/www/development/pixtask/vendor/illuminate/contracts/Queue/ShouldBeUniqueUntilProcessing.php:5 Stack trace: #0 {main} thrown in /var/www/development/pixtask/vendor/illuminate/contracts/Queue/ShouldBeUniqueUntilProcessing.php on line 5