Screen issues and app crashes after the One UI 7 update

[404errornotfound]

First, there was the coloration on my screen after getting the Galaxy A16 4 G, even after replacing the first device with another one, only to notice the same screen issues and decided to manage it. Only for the One UI 7 to be available and after the update, apps began to crash like they closed by themselves, and it's annoying 

[MNas04]

Have you tried wiping the cache partition on your phone? Also, ensure that all of your apps are up to date on the Play Store.