Fatal error: Uncaught Error: Call to undefined function UserFrosting\Sprinkle\Core\ServicesProvider\exec() in /home/dcdev/userfrosting/vendor/userfrosting/sprinkle-core/app/src/ServicesProvider/VersionsService.php:38 Stack trace: #0 /home/dcdev/userfrosting/vendor/userfrosting/framework/src/Sprinkle/SprinkleManager.php(114): UserFrosting\Sprinkle\Core\ServicesProvider\VersionsService->register() #1 /home/dcdev/userfrosting/vendor/userfrosting/framework/src/Cupcake.php(108): UserFrosting\Sprinkle\SprinkleManager->getServicesDefinitions() #2 /home/dcdev/userfrosting/vendor/userfrosting/framework/src/Cupcake.php(55): UserFrosting\Cupcake->createContainer() #3 /home/dcdev/userfrosting/vendor/userfrosting/framework/src/Cupcake.php(43): UserFrosting\Cupcake->init() #4 /home/dcdev/userfrosting/public/index.php(29): UserFrosting\Cupcake->__construct('UserFrosting\\Ap...') #5 {main} thrown in /home/dcdev/userfrosting/vendor/userfrosting/sprinkle-core/app/src/ServicesProvider/VersionsService.php on line 38