Thank you for reporting this important issue.
Cannot load ws-plugin–s2member-paypal-ops.
This sounds like an error with s2Member’s Class autoloader, which will automatically include the files that s2Member needs on each run. I’ve seen similar errors to this when plugins use a class autoloader without using PHP’s spl_autoload_register() function (as s2Member does), which will cause problems with other autoload functions.
I would recommend doing the following:
1. Reupload s2Member and s2Member Pro via FTP
There’s always the chance that the files that s2Member is attempt to get in it’s menu pages simply do not exist due to an error when the files were being uploaded. You should first try deleting the following folders from your plugins directory via FTP, and then reuploading a fresh copy of s2Member and s2Member Pro by downloading them here at s2Member.com:
s2member
s2member-pro
2. Deactivate Plugins
If the above does not solve your issue, please try deactivating all plugins in your installation of WordPress except s2Member, and reverting to a default WordPress theme.
If problems persist, please send us a Dashboard login via our Private Contact Form:
s2Member® » Private Contact Form