Calendar folder error at startup

When eM Client starts up I get: Server doesn’t support creating calendar folders in this location. I haven’t been able to sort this out.
Log includes:
8:59:04 PM [IMAP] Synchronizing subfolders: For folder[Gmail]/Sent Mail
8:59:05 PM [GData] Synchronizing calendar ‘’
8:59:05 PM [IMAP] Synchronizing subfolders: Done

I am sorry for the delayed reply. If the problem still occurs, send us your IMAP logs please. Go to menu Tools->Settings->Logging and check “IMAP”. Then restart eM Client, try to simulate the issue and send us (with reference to this topic) the logs using the same logging settings window.