I deleted the older version of Membership 2 Pro and installed the new one. I clicked Activate and it just sat there with the loading graphic and never seemed to finish. I opened my site in a new window and now I am getting a 500 error. How can I see what the 500 error is and resolve this? Our site was working great with Membership 2 Pro until the latest updates. We were going to go live next Monday and now our site is not usable. We cannot login or do anything unless we delete the Membership 2 Pro folder. If we can't resolve this quickly we are going to go with another plugin and would expect a refund. Please help us resolve this ASAP.