Getting invalid session ID when trying to get into Realms

I left my PC alone for a an hour, came back and got some 401 error  in the Realms.

I restarted my PC and Minecraft, logged back in , now it says "invalid sessin ID, try restarting minecraft"

I tried pretty much everything, from logging out and back in restarting my PC reinstalling the game, nothing seems to work.

Does someone now a solution to this problem?