Site performance, Server errors, outages and tunings

[Like Ra]

Upgraded WordPress to 5.8. A note to myself - upgrading WordPress causes memcached clean-up, what breaks MyBB caching. So, after each WP upgrade, the "smilies" and "attachments" MyBB caches must be rebuilt.

I will begin MyBB plugin updates tonight. If the forum becomes unavailable (or is in the maintenance mode), follow me on twitter: https://twitter.com/like_ra

[Like Ra]

Upgraded PHP (7.4.22-1), MySQL (8.0.26), Apache (2.4.48-1), kernel.

Watching error logs...

[Like Ra]

Apache (2.4.48-1)

Nope 😕 Back to 2.4.46...

Ok, for some reason, when I try to click on a picture or a link, I get this message...

The requested content can not be loaded.
Please try again later.

Also, when I try to post a reply, that little wheel just keeps spinning.
To see my post, I have to reload the page.

Ra?? What are you dinking with now ?

[Like Ra]

Thanks for letting me know @Tinker D ! WordPress broke the memcache again. I've just cleaned it up, so everything should be working now.

[Like Ra]

Two persons reported login issues - the password is correct, but the page just refreshes in the "logout state".

So far we were not able to identify what/where the problem is. I suspect that it's related to cookies - at least session cookies must be enabled. If you experience this issue, please try to do the following:

o- make sure you use https:// and not http://
o- do not run the site in the private windows
o- allow cookies for the site
o- disable enhanced tracking protection for the site.
o- send me an email (likera.com@gmail.com)

[Like Ra]

I tweaked one setting in the forum, which might work around the issue.

Yay, I was finally able to login. Kind of...
I can enter the forum on mobile only. For some reason I can't do it on desktop.
I've tried to login from different web browsers without any luck, so that means my PC is the problem.

Two persons reported login issues - the password is correct, but the page just refreshes in the "logout state".
So far we were not able to identify what/where the problem is. I suspect that it's related to cookies - at least session cookies must be enabled. If you experience this issue, please try to do the following:
o- make sure you use https:// and not http://
o- do not run the site in the private windows
o- allow cookies for the site
o- disable enhanced tracking protection for the site.
o- send me an email (likera.com@gmail.com)

The only solution that worked was the last one, so when in trouble contact Like Ra.

[Like Ra]

Did you check if you use http or https? E.g. https://www.likera.com/forum/mybb ?

[Like Ra]

Nothing in the logs... Disabling plugins one by one... Can you guys try again?