感觉是这个报错导致的:
[285月2023 15:27:16.361] [Server thread/ERROR] [net.minecraft.server.MinecraftServer/]: Exception stopping the server
java.lang.NullPointerException: Cannot invoke "net.minecraft.server.level.ServerLevel.m_6857_()" because "serverlevel2" is null
at net.minecraft.server.MinecraftServer.m_129885_(MinecraftServer.java:502) ~[client-1.19.2-20220805.130853-srg.jar%23581!/:?]
at net.minecraft.server.MinecraftServer.m_7041_(MinecraftServer.java:575) ~[client-1.19.2-20220805.130853-srg.jar%23581!/:?]
at net.minecraft.client.server.IntegratedServer.m_7041_(IntegratedServer.java:173) ~[client-1.19.2-20220805.130853-srg.jar%23581!/:?]
at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:682) ~[client-1.19.2-20220805.130853-srg.jar%23581!/:?]
at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:244) ~[client-1.19.2-20220805.130853-srg.jar%23581!/:?]
at java.lang.Thread.run(Thread.java:833) [?:?]