大佬们，这个报错进不去服务器怎么解决，单端非BC

[17:42:29 INFO]: Disconnecting com.mojang.authlib.GameProfile@7cd001de[id=fc7a9c09-86d6-3808-86fa-954a6cc2765f,name=BearAnak,properties={},legacy=false] (/127.0.0.1:50968): Failed to verify username!
[17:42:29 WARN]: Exception verifying BearAnak
java.lang.IllegalStateException: AsyncPlayerPreLoginEvent cannot be triggered asynchronously from primary server thread.
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:568) ~[arclight-1.19.2-1.0.2-4a870b30.jar%23217!/:arclight-1.19.2-1.0.2-4a870b30]
        at net.minecraft.server.network.ServerLoginPacketListenerImpl.arclight$preLogin(ServerLoginNetHandlerMixin.java:778) ~[server-1.19.2-20220805.130853-srg.jar%23277!/:?]
        at net.minecraft.server.network.ServerLoginPacketListenerImpl$1Handler$5eace1a92ad341a39e1b1b529fc45f54.run(ServerLoginNetHandlerMixin.java:165) [server-1.19.2-20220805.130853-srg.jar%23277!/:?]
[17:42:29 INFO]: com.mojang.authlib.GameProfile@7cd001de[id=fc7a9c09-86d6-3808-86fa-954a6cc2765f,name=BearAnak,properties={},legacy=false] (/127.0.0.1:50968) lost connection: Failed to verify username!

外置还是正版？
外置可尝试参考https://www.mcbbs.net/thread-1304292-1-1.html

没有外置登录也非正版，prevent-proxy-connections选项为false

尝试删除服务端根目录下的
usernamecache.json
usercache.json
两个文件
然后重启服务端

服务端和客户端的都删了，还是不行

服务器有没有用authlib-injector？

没有，我甚至不知道这是个啥

可以参考一下这个？
https://www.mcbbs.net/thread-1304292-1-1.html