All multiplayer servers not working

All multiplayer servers say "error: Automation to minecraft.net failed" or "not authenticated with Minecraft.net" including Hypixel and all ather suvers

What I expected to happen was...:
sign-in to surver and play

What actually happened was...:
When I went to log onto a multiplayer server it "said error: Automation to minecraft.net failed" or "not authenticated with Minecraft.net" including Hypixel