Hey Ken,
Oh no, that’s terrible! I’m so sorry to hear about the database issues and I hope they are resolved quickly.
I’m afraid there is no simple way to retrieve your attendee lists for specific events since they are in the database itself and it sounds like the issue you’re experiencing is with the database.
If you do still have access to cPanel, then it might be possible for you to access the database and navigate through the contents of it to locate attendees. The problem with that, however, is that you’re still not going to get the relationships of which attendee is associated with which event, which makes it difficult to check people in at the door.
Normally, I would have suggested exporting the list of attendees in WordPress and then printing the list out as a way to check people in manually, but you don’t have that option available to you either.
I’m really sorry, but I do not think there is a straightforward way to access those lists without your site at least being accessible. I hate being the bearer of bad news, but does this at least help answer your question? If you have any other questions about this or want to run other ideas by men, I’m totally happy to help as best I can.
Geoff