Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/bimmertest/BookStack/database/migrations/2016_02_25_184030_add_slug_to_revisions.php:6 Stack trace: #0 {main} thrown in /home/bimmertest/BookStack/database/migrations/2016_02_25_184030_add_slug_to_revisions.php on line 6