You will tell me what is good for my website, I know my website as my body and I know what is best for him.

Those cache plugins you mentioned are like harmful vaccines, the WP Optimize is natural medicine for my website.

I know you want to be helpful and receive allot of likes, but believe me I was doing same thing, then I left, there are better things to do. Beside there are developers who know very good how to support us. 😉 

P.s. yes I know how to push the buttons.

WP Optimize is NOT the best plugin for that, by all means.

As for cache, it is NOT that "wpForo doesn't NEED caching". Caching wpForo with traditional plugins (with static html pages), creates all kind of problems, optimizing also.

Anyways, good luck.

Surprise, it's not the cache plugin, today I login and same thing, the WP Optimize is one of the best from all tested plugins.

Anyway it is still disabled so not sure what is the issue, might be some s2member incompatibility.

As I mentioned before the Forum page was excluded from cache all the time, because I know Robert said that wpForo does not need to be cached, it has it's own cache.

@robert 

I have disabled the cache plugin and testing, because I feel you both were right.

If it works I wonder what minify file must be excluded from minify or cache, but I feel it is minify issue, cause I minify everything in the settings.

For caching, use some simple and tested plugin, like Fastest cache or WP Super Cache, EXCLUDING the page.

About optimizations (minify etc etc) use some tested plugin, like Autoptimize. BUT keep in mind in 2022 optimizations are a waste of time and speed. Not needed in http/2.

I have disabled the cache plugin and testing, because I feel you both were right.

If it works I wonder what minify file must be excluded from minify or cache, but I feel it is minify issue, cause I minify everything in the settings.

That link is generated automatically by s2member when I select in settings to let s2member to customize the login/registration page instead of WP, somehow all 3 (WP, s2member, wpForo) are mixing together and output that link.

No, wp-login.php is a file, it's not a path, so wpForo cannot disable it. You can use other solution to disable it: https://wordpress.org/plugins/block-wp-login/

This is a wrong URL. Please change it to this:

https://omtesla.com/forums/?foro=signin&redirect_to=https%3A%2F%2Fomtesla.com%2Fforums%2F

Other thing, the /wp-login.php page is active even with enabled feature, Replace WP login Page url to wpForo url.

I think it must disable this login method with that feature or not?