I am getting JUser can't load IDXX errors with EasyBlog.

I installed EasyBlog on my Joomla 3.2.1 site. But I am getting JUser errors. I am assuming this is due to me using Extende REG from JVitals, since this disables the Joomla User and Authentication. I see that JoomSocial and Community Builder are supported. How can I get Extended Reg User/Authentication supported? I need their great multiple form system.

http://zijiutest.com, just click on blogs to see.

Warning
JUser: :_load: Unable to load user with ID: 79

JUser: :_load: Unable to load user with ID: 224

JUser: :_load: Unable to load user with ID: 684