What the heck is this message? I have been getting it since last night and now its afternoon

I thought just waiting will solve it but I still cannot enter any games. It says game found, loads for ages then says failed to connect to server, every time

This is the first time it has happened to me. Do I just have to wait for this issue to go away or is my game broken?

Is this because of the maintenence thing that is going on rn? Is it happening to anyone else