When I activate the s2Membership plugin I am immediately kicked out of the Wordpress Admin. When I attempt to go back to the admin login, I get a 500 error. I only have a couple of other plugins and I deactivated those before attempting to activate s2Membership. I am using the following versions:
Wordpress 3.0.1
Thesis Theme 1.8
s2Membership 3.2.3
Host: Rackspace Cloud Sites
Any help would be appreciated.