Plugin keeps crashing my site | CyberSEO Pro | Support Forum

Both plugins use the similar algo to parse the feeds, so if one of them crashes your server, the other one will do the same.

Seems that you have too many feeds and they are set to pull the content simultaneously and very often. Probably not just one single post but about 5 or even more of them from each feed at once. Furthermore, the "Full Text Extraction" feature loads your server much-much more (the same applies to synonym tables and 3rd-party spinners and translators). If you set the plugin to download the post images and generate thumbnails of them, it will be an additional load. Plus to that some people use an enormous amount of other plugins and who knows how much they abuse your server's hardware.

Course if you have a high-tech dedicated server with super fast connection to every host you are pulling the content from, this scheme will work. But if not, you have to do something. By "something" I mean maximizing the time between every feed pull to at least a hour or a few and don't let them be pulled all at the same time! Minimizing the number of posts syndicated at once to 1 (one). Take care about your proxy lists (I'm not sure that all hosts there are fast and reliable enough). Get rid of plugins you don't really need. Use PHP 7.2+ and MySQL 5.7 to relieve pressure on your server at least twice. And make sure that your PHP max execution time (the max_execution_time directive in your php.ini file) is set for at least a few minutes (120-180 seconds for example).

And the best solution is to move your site to a dedicated server with a powerful hardware.