Caching issue with WordPress Zero Spam plugin enabled

Hello,

I found a problem where the WP Fastest Cache plugin saves a page with a message about blocking malicious bots in the cache, and then displays that page on the next visit to real good visitors. Thus, real visitors to the site are shown a page about blocking bots instead of normal content.

This page is generated by the WordPress Zero Spam plugin. The page should only be displayed to malicious bots, not good visitors. The Zero Spam plugin is very good at protecting against spam bots that target feedback forms and comments on posts. I’ve been using Zero Spam for a long time, but only now have I noticed the problem described above with caching enabled. A temporary solution is to disable caching on the site. But it doesn’t suit me.

Is there any way to solve this problem?

I also created a branch on this problem in the WP Fastest Cache plugin support forum

I will be grateful for the answer and help.
Thank you!

PHP 7.4.21
WordPress 5.7.2
WP Fastest Cache 0.9.1.9
WordPress Zero Spam 5.0.12