Hi, I would like to know some more answers on this topic.

So well, if you have an android version, then these are just network failures. I had the same thing a couple of days ago. I restarted my device, restarted google play, cleared the cache. And everything began to work. So I recommend that you do the same. Another problem is that some users have lost paid game updates. I decided to read what to do with it on the Internet and found one article on https://wealthofgeeks.com/free-google-play-credit/ . They say that with the help of free credits, you can restore the paid version of the games. So I think this is not a problem and the developers will soon fix all the errors.