there's a bug regarding the stamina you pretty much need to log in twice in a row for it to show your real stamina. also make sure to reload the page twice before gathering or it might take stamina instead of giving stamina. i believe there is also a rare bug regarding the continuous log in bonus.
people with "stuck on days to 400 days login bonus 0" bug (and i know you are here i saw few of you talking about it yesterday) need to send support ticket about it. As it is uncommon bug and may be just forgotten in sea of bigger bugs we got with latest update.