To fix Google temporary error 500, you are supposed to follow and apply the below- mentioned steps. You can check out the steps here carefully. Now, to fix such problems, you must apply the steps:
 First of all, you should try an alternative Google drive URL
 Now, you must change your browser
 Then, you must clear the cache of your browser
 Now, you must use Google drive from the incognito window
 And then, you must look through your firewall proxy settings
 And then you should check if Google drive is down Follow the above-stated steps carefully to resolve all your problems without any fuss or chaos. Check out to know more.