approximately every 48 the cache is destroyed since you started using your plugin
2019/02/19 09:27:02 [error] 7536#7536: *3109334 FastCGI sent in stderr: "PHP message: PHP Fatal error: Class 'IPS\Theme\Cache\class_forums_front_forums' not found in /var/www/clients/client0/web1/web/system/Theme/Theme.php(871) : eval()'d code on line 11" while reading response header from upstream, client: 179.60.18.7, server: xxxx.com, request: