마크 포지 멀티 서버를 구동하여 이용중이였는데 어느순간부터 서버가 열리지않습니다.아무것도 건드린게 없는데 갑자기 그러니 당황스러운데 해결방법을 알려주실 수 있나요?

[05:59:07] [Server thread/ERROR] [minecraft/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) ~[server-1.19.2-20220805.130853-srg.jar%23155!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:A}

        at net.minecraft.server.MinecraftServer.m_7041_(MinecraftServer.java:575) ~[server-1.19.2-20220805.130853-srg.jar%23155!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:A}

        at net.minecraft.server.dedicated.DedicatedServer.m_7041_(DedicatedServer.java:521) ~[server-1.19.2-20220805.130853-srg.jar%23155!/:?] {re:classloading,pl:accesstransformer:B}

        at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:682) ~[server-1.19.2-20220805.130853-srg.jar%23155!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:A}

        at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:244) ~[server-1.19.2-20220805.130853-srg.jar%23155!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:A}

        at java.lang.Thread.run(Thread.java:1589) [?:?] {}