Fatal error: Uncaught Error: Class "craft\db\Migration" not found in /home/leasingm/public_html/public_html/vendor/ether/simplemap/src/migrations/Install.php:21 Stack trace: #0 {main} thrown in /home/leasingm/public_html/public_html/vendor/ether/simplemap/src/migrations/Install.php on line 21