Gmail is used by many people around the world and when these types of heavy user based service gets unavailable to their daily users, then it might be very frustrating for you. It just shows a screen written “we’re sorry, but your account is temporarily unavailable” and it only allow us to wait. so they can resolve this issue.
Sometimes this problem can be occurred from our end also. So, here are some troubleshoot and solutions you can do to fix this problem.
1) You should always make sure that Gmail Main Server should not be down, you can check this with the help of different social media channels like Twitter, Gmail Forums or there are third party websites which will give you correct information about those websites which are down right now!
2) Browser Extensions makes our life easy but there are some extensions on the internet which can be dangerous for our browser as they might have malware. So make sure that you have not installed any low rating Extension on your browser. If you have, then remove it as soon as possible!