[IMAP]Creating or updating folder '/Archives.Domain/hosting' failed due to the following error: Invalid mailbox name: Name must not have '/' characters (0.001 + 0.000 secs)

[IMAP]Creating or updating folder ‘/Archives.Domain/hosting’ failed due to the following error: Invalid mailbox name: Name must not have ‘/’ characters (0.001 + 0.000 secs).

I started getting this error when I upgraded to V8, and I haven’t been able to connect to my email since. I didn’t add or change any folders or mailboxes at that time, just updirted the software. I’m using webmail for now, but it’s messing up my workflow. Any ideas?