[25-Aug-2020 17:45:27 UTC] PHP Fatal error:  Interface 'Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface' not found in /home/spring17/public_html/xiaomigrate/vendor/exercise/htmlpurifier-bundle/src/CacheWarmer/SerializerCacheWarmer.php on line 21
[23-Dec-2020 20:59:12 UTC] PHP Fatal error:  Interface 'Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface' not found in /home/spring17/public_html/xiaomigrate/vendor/exercise/htmlpurifier-bundle/src/CacheWarmer/SerializerCacheWarmer.php on line 21
