Exceeded Everdo Free limits

I just installed Everdo 1.8.5 on a Win10-PC. After setting up ESS, the PC syncs all data correctly, but then keeps sending me “Sorry, but you have exceeded Everdo Free limits.”
Two Smartphones sync well. And one other Linux-PC, which I cannot check at the moment, is authentecated in the ESS-Account.
What can I do to get the sync right on this Windows PC?

I found the problem!
After the first sync areas “Home” and “Work” were doubled. (In the “All Areas” section.) Is this a bug?
After deleting one of them, sync works well again.