I’m sorry to hear about this! Mike, you said this:
so I had to rename the plugin folder to get it working again.
Can you please clarify exactly what you mean here?
1. What was the plugin folder name before you did this change?
2. What did you change name to?
—
Clay, is /wp-admin entirely inaccessible for you? If so, you should be able to at least restore admin access by going to /wp-content/plugins on your site via FTP, and then deleting The Events Calendar’s plugin folder there [which will not delete event data, just the plugin files].
— George