Have you done new configuration in Server or in Wordpress?

As I said, I can create an admin account for you.

Yes, you can send it to support[at]gvectors.com email address.

Was sent to support 5 min ago.

Thanks

Fixed. You've deleted the main forum page. There should be two forum pages if you use it on home.

1. By default Forum uses “Forum” page with /community/ slug.  You don’t need to delete current forum page even if you’ve already changed that, just follow to next step.
2. Create another page, for example “Home Forum” with “home-forum” slug. And put [wpforo] shortcode in  page content.
3. Navigate in Dashboard to Settings > Reading admin page, find the “Front page displays” option, select the “Front page”, choose “Home Forum” in drop-down and save options:

And these are already done, please don't delete or change them.

@robert,

First thousand thanks!!!

2nd. I can not recall deleting anything.

All possibilities are open and G__D works in misterius (spelling) ways...

Again, thank you so much.

@Robert,

[off topic, whatever the support team did to fix my problem, indirectly they fixed the problem of the<back space> or left arrow to go back to previous page. How can I fix it on my other WP sites?]

Thank you.