Fatal error: Uncaught Error: Class 'Illuminate\Database\Eloquent\Relations\Relation' not found in /var/www/development/pixtask/vendor/illuminate/database/Eloquent/Relations/BelongsTo.php:12 Stack trace: #0 {main} thrown in /var/www/development/pixtask/vendor/illuminate/database/Eloquent/Relations/BelongsTo.php on line 12