Plugin Error “Thread add error” wpForo Forum Plugin

I installed a forum on my site via a plugin and it works until I try and create a thread or post I get “Thread add error” and I read this :

https://wpforo.com/community/faq/topic-add-error-2/

And to fix it I need PHPMyAdmin to create the reset of the tables but I don’t have access to that so can one of the staff read the tutorial above and do it for me? Thanks.

P.S: I just installed it.

With alterBlog account you can't fix it.
Normally plugins should use the prefix in wordpress configuration, so this is a bug.
You should use another plugin.

Bye!