Not related to your issue, but your page is FULL is crashes. You MUST fix all of them.  2022-06-27-18_11_36-How-to-use-Google-Pay-in-Hingli...

Ok then, wait until someone from wpForo support will help you out of this.

You said that you entered the DB and manually deleted those? Or i got it wrong? The tools i mentioned are those:  Screenshot.png

There are several tools inside wpForo to check/fix things. Have you tried them? Apparently you didn't deleted correctly (when manually).

You can use a total control global plugin for this: 4 years old, still works great with 5.8.x (and Wo 6). If you want something newly updated, ...

Nice forum, still you have an issue / crash: Uncaught SyntaxError: expected expression, got '<' Press F12 to see the issue in your browser's co...

Google Webmaster will tell you why.

@kuduly I don't think so that those two captures are related to the issue. I have no other suggestions. wpforo support guys can help more on this.

You have ENABLED Wordpress debug log and it is clear? You have passed/checked all wpForo tools issues check?

You mean that users going to their profile see an empty page? Do you use any other profile plugin? Also if a blank page, it MUST be a fatal error sh...

White (blank) pages usually mean a fatal error. Please use the Tools of wpForo to check for errors and database issues. You could also enable Standa...

Does this cover your needs?