Hi, thank you for this plugin wpforo!

I report a bug related to beta-6 : when I try to register, I can't get the user profil page. 

Fatal error: Call to a member function add() on null in /wp-content/plugins/wpforo/wpf-includes/class-members.php on line 183

so the registration doesn't work.

For your test, you can use this link please : http://ufms.spb.ru/community/?wpforo=signup

the url forum is here : http://ufms.spb.ru/community/

For you information I use https://themezee.com/ warta templates. I you have any idea to help me to solve that problem to make the forum work it would be great ?

thank you very much

best regards