I purchased this but I am not able to use it.
When I click a forum category that has a ton of prefixes (I have a prefix that has over 10K results) I get a server error.
Either:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at webmaster@*******.com to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
or
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 80 bytes) in /home/*******/public_html/src/XF/Db/AbstractStatement.php on line 104
It is definitely the add-on. It only happened when I installed it. When I disable it is fine, when enabled it happens every click to the category. What's odd is, if I remove that forum category from the list in your settings it still happens (I guess the code still queries but menu is hidden). It must be fully disabled.