XF 1.5 "Invalid math expression" and Mysqli problems

Hi everybody. :cool:

From a few months ago, I have the following errors:


Clicking here:

wmjFdyL.png




I get this:

LvcTtBZ.png





In otrer case:


Clicking here:


rW0XUqJ.png




I get this:

htA2lLr.png




SERVER ERROR LOGS:

CHfqE3J.png





What do you think about this? :unsure:
 
The problem is your XenForo version, it is still on 1.5.0
ver.webp

UI.X and Core need minimum version XenForo 1.5.9 in their new versions. It is mentioned in their theme requirements.

If you upgrade XenForo to latest (1.5.15) then try to rebuild/upgrade the theme again you should be OK.
 
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