Okay. So i had this error for MONTHS ever since i had to reinstall Windows on my pc but it never afected me. I used an alternative launcher anyways so it never gave me an error
BUT today i tried launching from the official one to see if it would impact my FPS and it wont let me enter servers, i reinstalled the launcher, game, cleared .minecraft folder i did EVRYTHING
so i went back to my alternative launcher and now even that wont let me into server, same error ingame people had described before me(invalid session)
after the update both errors i was experiencing(both in launcher and ingame) have now disappeared