Community Support Forums

Have you updated s2Member to the latest version?
Check this link on how to do it correctly:
viewtopic.php?f=36&t=247

It's odd that the button created with the shortcode would cause trouble. Still, you can use the PayPal created button working with s2Member so you don't need to add new members manually.

Did you see Jason's instructions here? viewtopic.php?f=36&t=309#p1333

I hope that helps.