Authentication servers are down. Please try again later, sorry!

[14:58:10] [User Authenticator #22/INFO]: Disconnecting com.mojang.authlib.GameProfile@75494734[id=<null>,name=daitoudage,properties={},legacy=false] (/[歌华有线地址]219.236.75.146:61897): Authentication servers are down. Please try again later, sorry!

[14:58:10] [User Authenticator #22/ERROR]: Couldn't verify username because servers are unavailable

[14:58:10] [Server thread/INFO]: com.mojang.authlib.GameProfile@75494734[id=<null>,name=daitoudage,properties={},legacy=false] (/[歌华有线地址]219.236.75.146:61897) lost connection: Authentication servers are down. Please try again later, sorry!

貌似说是认证server宕机了，难道是重启服务器吗？

果不其然，就是服务器挂了，重启了就好了，先kill -9 pid掉，然后在启动。