Fatal error: Uncaught Error: Class "SilverStripe\ORM\DataExtension" not found in /var/www/bb-image-processing/src/LEMagick/Extensions/SiteConfigExtension.php:7 Stack trace: #0 /var/www/vendor/composer/ClassLoader.php(576): include() #1 /var/www/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/var/www/vendor...') #2 [internal function]: Composer\Autoload\ClassLoader->loadClass('BB\\ImageProcess...') #3 /var/www/vendor/silverstripe/config/src/Transformer/PrivateStaticTransformer.php(43): class_exists('BB\\ImageProcess...') #4 /var/www/vendor/silverstripe/config/src/Collections/MemoryConfigCollection.php(73): SilverStripe\Config\Transformer\PrivateStaticTransformer->transform(Object(SilverStripe\Config\Collections\MemoryConfigCollection)) #5 /var/www/vendor/silverstripe/framework/src/Core/Config/CoreConfigFactory.php(89): SilverStripe\Config\Collections\MemoryConfigCollection->transform(Array) #6 /var/www/vendor/silverstripe/framework/src/Core/Config/CoreConfigFactory.php(67): SilverStripe\Core\Config\CoreConfigFactory->createCore() #7 [internal function]: SilverStripe\Core\Config\CoreConfigFactory->SilverStripe\Core\Config\{closure}() #8 /var/www/vendor/silverstripe/config/src/Collections/CachedConfigCollection.php(150): call_user_func(Object(Closure)) #9 /var/www/vendor/silverstripe/config/src/Collections/CachedConfigCollection.php(93): SilverStripe\Config\Collections\CachedConfigCollection->getCollection() #10 /var/www/vendor/silverstripe/framework/src/Core/Config/Config_ForClass.php(81): SilverStripe\Config\Collections\CachedConfigCollection->get('SilverStripe\\Co...', 'module_priority', 1) #11 /var/www/vendor/silverstripe/framework/src/Core/Config/Config_ForClass.php(114): SilverStripe\Core\Config\Config_ForClass->get('module_priority', 1) #12 /var/www/vendor/silverstripe/framework/src/Core/Manifest/ModuleManifest.php(231): SilverStripe\Core\Config\Config_ForClass->uninherited('module_priority') #13 /var/www/vendor/silverstripe/framework/src/Core/BaseKernel.php(203): SilverStripe\Core\Manifest\ModuleManifest->sort() #14 /var/www/vendor/silverstripe/framework/src/Core/CoreKernel.php(47): SilverStripe\Core\BaseKernel->bootManifests(false) #15 /var/www/vendor/silverstripe/framework/src/Control/HTTPApplication.php(132): SilverStripe\Core\CoreKernel->boot(false) #16 /var/www/vendor/silverstripe/framework/src/Control/Middleware/HTTPMiddlewareAware.php(65): SilverStripe\Control\HTTPApplication->SilverStripe\Control\{closure}(Object(SilverStripe\Control\HTTPRequest)) #17 /var/www/vendor/silverstripe/framework/src/Control/HTTPApplication.php(130): SilverStripe\Control\HTTPApplication->callMiddleware(Object(SilverStripe\Control\HTTPRequest), Object(Closure)) #18 /var/www/vendor/silverstripe/framework/src/Control/HTTPApplication.php(113): SilverStripe\Control\HTTPApplication->execute(Object(SilverStripe\Control\HTTPRequest), Object(Closure), false) #19 /var/www/public/index.php(24): SilverStripe\Control\HTTPApplication->handle(Object(SilverStripe\Control\HTTPRequest)) #20 {main} thrown in /var/www/bb-image-processing/src/LEMagick/Extensions/SiteConfigExtension.php on line 7