Can't connect to server

When I try to connect to a specific server in the 16.3 version, the error 'the authentication servers are currently down for maintenance' keeps showing up. The server that I try to join is compatible with the 16.3 version, so that's not the problem. I reinstalled my java edition 2 times, the error keeps showing up. I also checked my firewall and that's also not the problem.

Can you guys help me out please? My accountname is chiqon97