Fatal error: Uncaught Error: Class 'yii\i18n\PhpMessageSource' not found in /home/mpolsk5/public_html/seocomo/craft/vendor/craftcms/cms/src/i18n/PhpMessageSource.php:19
Stack trace:
#0 {main}
thrown in /home/mpolsk5/public_html/seocomo/craft/vendor/craftcms/cms/src/i18n/PhpMessageSource.php on line 19