Fatal error: Uncaught Error: Class "ProcessMaker\Upgrades\UpgradeMigration" not found in /home/dyfnpqqc/public_html/scorv/upgrades/2023_09_20_153234_add_default_screens_for_ai_assistant.php:7 Stack trace: #0 {main} thrown in /home/dyfnpqqc/public_html/scorv/upgrades/2023_09_20_153234_add_default_screens_for_ai_assistant.php on line 7