Problem with the special folders

[TheTruth]

Hello everyone,

I've been running Rouncube on a Debian server fine for months until recently. I added another domain pointing to my server and wanted to add an email account. The emails I send to this account are well received (they're showing in the Inbox folder of Roundcube), however I can't make the special folders work. Each time I go to the Roundcube settings to add new folders, when I go to the "Special folders" settings, I only see --- and INBOX in the dropdown lists (though the folders are created in /var/spool/vmail/domain.com/account).

That seems to be a recurrent issue in Roundcube, the flders things, but I couldn't get a straight answer from what I've read online. Thanks for your help