Sunucuya girilmiyor. "Internal server error"

Sunucu sürümü: 1.16.5 - Java16
Sunucuya girince internal server error hatası veriyor.
haritaları sildim ama hala aynı. durduk yere böyle bir hata vermeye başladı.

[16:57:49] [Server thread/WARN]: Failed to handle packet for /sansur
net.minecraft.server.v1_16_R3.ReportedException: Sending packet
at net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:1911) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.PlayerConnection.sendPacket(PlayerConnection.java:1876) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.PlayerList.a(PlayerList.java:278) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.LoginListener.c(LoginListener.java:190) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.LoginListener.tick(LoginListener.java:87) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.NetworkManager.a(NetworkManager.java:403) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.ServerConnection.c(ServerConnection.java:168) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.MinecraftServer.b(MinecraftServer.java:1520) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.DedicatedServer.b(DedicatedServer.java:436) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.MinecraftServer.a(MinecraftServer.java:1347) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1135) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-794]
at java.lang.Thread.run(Thread.java:831) [?:?]
Caused by: java.lang.NullPointerException: type cannot be null
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:787) ~[patched_1.16.5.jar:git-Paper-794]
at com.comphenix.protocol.injector.StructureCache.getStructure(StructureCache.java:138) ~[?:?]
at com.comphenix.protocol.events.PacketContainer.<init>(PacketContainer.java:126) ~[?:?]
at com.comphenix.protocol.injector.netty.manager.NetworkManagerInjector.onPacketSending(NetworkManagerInjector.java:96) ~[?:?]
at com.comphenix.protocol.injector.netty.channel.NettyChannelInjector.processOutbound(NettyChannelInjector.java:553) ~[?:?]
at com.comphenix.protocol.injector.netty.channel.NettyChannelInjector$2.doProxyRunnable(NettyChannelInjector.java:456) ~[?:?]
at com.comphenix.protocol.injector.netty.channel.NettyEventLoopProxy.proxyRunnable(NettyEventLoopProxy.java:43) ~[?:?]
at com.comphenix.protocol.injector.netty.channel.NettyEventLoopProxy.execute(NettyEventLoopProxy.java:252) ~[?:?]
at net.minecraft.server.v1_16_R3.NetworkManager.b(NetworkManager.java:311) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.NetworkManager.dispatchPacket(NetworkManager.java:267) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.NetworkManager.sendPacket(NetworkManager.java:243) ~[patched_1.16.5.jar:git-Paper-794]
at net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:1903) ~[patched_1.16.5.jar:git-Paper-794]
... 12 more

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