Everytime I activate the wpforo plugin, I get internal error message. Please help. I can't figure this out.
As soon as I deactivate the plugin, it goes back to the original theme.
Any details on the error? Can you activate WP debug to a log and post details?
Or disable your plugins to see if there is a conflict and then enable one by one to find the cause.
Is that a working Wordpress site? Working correctly?
Is that Linux or maybe Windows?
As for permissions, probably you have a gereral permissions problem?