Resolved Website forum server under maintenance error

[Hajime Tanaka]

Server operating system version

Almalinux 8.5 x86_64

Plesk version and microupdate number

18.0.43.1

Someone has reported who had an issue that the site forum caused to show maintenance mode.

This is not WordPress, it's running on the XenForo forum software only. It is caused to the Plesk issue?

 

[Kaspar]

Is maintenance mode enabled on your forum?

 

[Hajime Tanaka]

Is maintenance mode enabled on your forum?

I visit my forum, and everything is fine. I don't know. Is there a way to check the errors log from maintenance mode?

No that isn't enabled or not caused by XenForo, only Plesk and the server caused issue.

 

[Kaspar]

I highly doubt that Plesk is the cause of your issue. It's much more likely to be a XenForo issue (or setting) or caching issue. I think you'll have a bigger chance of finding a solution on the XenForo community forums. They have a great and active community.

 

[Hajime Tanaka]

I highly doubt that Plesk is the cause of your issue. It's much more likely to be a XenForo issue (or setting) or caching issue. I think you'll have a bigger chance of finding a solution on the XenForo community forums. They have great and active community.

I found out mod_security caused to block SQL injection attack. It is completely false, I've added a whitelist to the Web Application Firewall from Plesk.

It is now resolved the issue and thank you for the help!