Good catch !!!!!!!!!!!!!!

ctype is a PHP extension, you usually activa all those within your Cpanel of your hosting account.  Screenshot.png

Try to fix those errors you have:  2023-03-05-19_55_56-Aneros-Forum-–-Aneros-Community-—-Mozilla-Firefox.png

Just enable CTYPE extension for PHP.

Just enable STANDARD Wordpress DEBUG TO A LOG and let us know the fatal error details. Critical error functions.php means nothing.

Please post the complete error.

Please remove ANY caching from wpForo. <!-- Hummingbird cache file was created in 0.38717293739319 seconds, on 02-03-23 20:11:44 -->

A two months old site/forum is normal not to be indexed. Open a google webmaster's account and see what is going on. Also having google adsense in...

I have no idea what this is but it MUST be removed at least from wpfor page(s). <!-- Cached by 10Web -->

Great news, still W3TC is active.

Go to wpForo BOARD settings and see what is the slug (permalink). Forums or Community? Also see the PAGE ID of the forum page. The SLUG is your FORU...

There are two urls, community and forums. Not correct. I would guess the correct is forums. Check the boards url. The issue comes from this: <...

@pawelk Ok, then Wordpress debug to a log will tell you what is wrong. Or F12 browser console maybe.

Here you say wpForo 2.15, now you say 1.9.x. What is correct?

@pawelk Just enable Standard Wordpress DEBUG TO A LOG and see the errors.