Today we discovered that all of the S2Member settings had been completely cleared. Looking at the tables, user data that had been added to custom fields was still there, but S2 has no sign we had been using it.
At this point I'm not sure exactly when the issue occurred. We had imported some users at the end of April (around April 21) and those users came in fine using an import tool. We had run a few Wordpress plugin updates in the last 2 weeks, but again, I can't say for sure what may have happened.
Is there anything we can do to look for and restore the settings? We didn't have an export of all the settings, so I don't have that to fall back on. I'm looking at restoring the entire site to a previous version but then a lot of content has been posted since then and I don't want to have to re-add it all.
Lastly, are there steps we can take to prevent this? I'm assuming either an error on the server caused this or maybe a conflict with another plugin, but I don't know. Plugin deletion safeguards are enabled, by the way.