Big errors with Membership plugin

I have 370 paid members a what I call "Gold Level 2" and almost 30 of them can't even log in even with their settings created "Subscription: Gold Level 2...Membership: Level 2" They can log into Level 1 FREE, but none of the Level 2 features AND it says they are logged into Gold Level 2. Every permission is setup but when click on links only accessable for Level 2, they get redirected as if they were Level 1. This is causing me to lose a serious amount of business and I really need help asap.