Fatal error: Uncaught Error: Class 'craft\db\Migration' not found in /home/luxurytr/public_html/lt8/vendor/verbb/super-table/src/migrations/m180219_000000_sites.php:15 Stack trace: #0 {main} thrown in /home/luxurytr/public_html/lt8/vendor/verbb/super-table/src/migrations/m180219_000000_sites.php on line 15