Solved PHP Error when debug mode is on

So if I turn on debug mode the site will show up but if I turn it off it will go to a blank screen. Here are the errors that debug mode shows:

Warning: mb_strlen() expects parameter 1 to be string, array given in /www/wwwroot/WEBSITE/libraries/vendor/joomla/string/src/phputf8/mbstring/ on line 24

Warning: mb_substr() expects parameter 1 to be string, array given in /www/wwwroot/WEBSITE/libraries/vendor/joomla/string/src/phputf8/mbstring/ on line 94

Hello,

Which Php version are-you using ? Are-you on Joomla! 4.0.5 ?

There are some fixes made in last dev version of Joomla! 4.0.6 to suppress deprecated warnings with Php 8.1, there are some work to do to remove others messages. It's the same in Kunena 6.0, we have fixed couple of things with Php 8.1 but it remains some deprecated warnings.

I am still using php7.4 due to a bug in aapanel's deployment for my server.

Which Joomla! version are-you using ?

Try by disabling all your third parties modules and plugins to see if ti's coming from Kunena or not

So I figured out the plugin which was gtranslate (a module to translate a page)... the issue now though is nothing shows up after the first index page. , , nothing appears, its just blank. Also the top menu will not show up on the home page but when you go into Kunena 1 level deeper it'll show up.

Made some progress by changing the settings in Kunena's SEF:


Title Option Description
Search Engine Friendly URLs
Yes

Select whether or not URLs are optimized for search engines. NOTE: Kunena accepts SEF URLs even if this feature has been turned off.
Direct Component Access
Yes

Set Yes to allow direct access to https:/, but only after proper testing. Disabling this feature improves SEO and brings some protection against spam bots. Warning: If you see 404 Component not found. errors after setting this option to No, please check that you have correctly set up the Kunena menu.
Support Legacy URLs
No
Select Kunena version to add support for legacy URLs starting from that version. You have been using Kunena since version 5.2.4. This feature keeps all the old links pointing to the forum working.

SEF Redirect
No
Redirect the page when the itemid is missing. Disabling this option has a negative seo impact


So now I can get past the index page to see all the listings in the , it just goes back to a blank screen. I've tried testing out various combinations of Kunena's SEF.