Deprecated: craft\auth\sso\BaseExternalProvider::normalizeCallback(): Implicitly marking parameter $defaultClass as nullable is deprecated, the explicit nullable type must be used instead in /home/rosengar/www-craft/craft-rosengart/vendor/craftcms/cms/src/auth/sso/BaseExternalProvider.php on line 342

Fatal error: Uncaught Error: Class "craft\auth\sso\BaseProvider" not found in /home/rosengar/www-craft/craft-rosengart/vendor/craftcms/cms/src/auth/sso/BaseExternalProvider.php:34 Stack trace: #0 {main} thrown in /home/rosengar/www-craft/craft-rosengart/vendor/craftcms/cms/src/auth/sso/BaseExternalProvider.php on line 34