I have the same problem but on a PC instead.
I followed the advise to disconnect from icloud on my PC, I then I try to connect but it keeps going on circles that I have been directed to Icloud login page. Please log in and allow Enpass to sync
But nothing happens
All my other devices (Iphone and Ipad) has no issues synching, only my PC that said I needed to reauthenticate which I could not and I followed the advise to disconnect but no luck. Please help. Thanks