[Iauisu78]

After uninstalling Facebook and messanger from my phone because of some problems I had with the apps, I could not install them again. It was giving me error messages to trouble shooting and trying to do that it was dectating screen overlays, I don't know what to do

[Javier P]

Welcome to the forums. Do you get any specific error when trying to install the apps? I remember reading about this same problem and in some cases the cause was an incomplete uninstall that left some files behind.

Use a file explorer to look for any Facebook related file and delete them. You can also use an app called SD Maid and run the 'Corpse Finder' feature.

Tell us how it goes.

[Morty2264]

Welcome to the forums! Try restarting your device to see if that fixes anything. Have you cleared the cache as well? Your uninstalled apps should still be accessible within Google Play - see if the Facebook and Messenger apps are there; and try re-installing them from that screen.