Fatal error: Uncaught Error: Class "yii\base\Event" not found in /home/telefonai/public_html/test.telefonai.eu/templates/__MACOSX/vendor/nystudio107/craft-code-editor/src/events/RegisterTwigValidatorVariablesEvent.php:20 Stack trace: #0 {main} thrown in /home/telefonai/public_html/test.telefonai.eu/templates/__MACOSX/vendor/nystudio107/craft-code-editor/src/events/RegisterTwigValidatorVariablesEvent.php on line 20