When I loaded the Minecraft launcher I keep getting a message come up everytime saying
This is an older game version that doesn't support the latest player safety features.
Yet I have uninstalled and reinstalled Minecraft to see if that might fix the problem but it has not helped at all.
If I try to play any of earlier versions ex: 1.15.2, 1.16.1, 1.16.2, I keep getting this message come up everytime:
You are about to play a version of Minecraft: Java Edition that does not support the latest player safety features.
To access these features, play a more recent version of Minecraft: Java Edition.
I understand the risk. Don't warn again about this installation.
As far as I'm aware, this message appears because those versions do not display the message about 3rd party content not being monitored. This is a feature that works as intended and is not a bug.