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I am Japanese and use a translator, so my sentences may be strange. A problem arose.

I recently received notification of an update to this plugin and immediately installed it and installed it on my Minecraft server. However, I can no longer connect to the server. The version is 1.17.1 I used MythicDungeons-1.1.0.

Here is the error log of the server.

[io.netty.channel.DefaultChannelPipeline] An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.lang.IllegalStateException: zip file closed at java.util.zip.ZipFile.ensureOpen(ZipFile.java:831) ~[?:?] at java.util.zip.ZipFile.getEntry(ZipFile.java:330) ~[?:?] at java.util.jar.JarFile.getEntry(JarFile.java:518) ~[?:?] at java.util.jar.JarFile.getJarEntry(JarFile.java:473) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:163) ~[patched_1.17.1.jar:git-Paper-411] at java.lang.ClassLoader.loadClass(ClassLoader.java:587) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:108) ~[patched_1.17.1.jar:git-Paper-411] at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:103) ~[patched_1.17.1.jar:git-Paper-411] at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] at net.playavalon.mythicdungeons.packetevents.impl.injector.connection.ServerChannelHandler.channelRead(ServerChannelHandler.java:64) ~[MythicDungeons-1.1.0.jar:?] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:93) ~[patched_1.17.1.jar:git-Paper-411] at org.geysermc.floodgate.inject.spigot.SpigotInjector$2.channelRead(SpigotInjector.java:108) ~[floodgate-spigot.jar:?] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.nio.AbstractNioMessageChannel$NioMessageUnsafe.read(AbstractNioMessageChannel.java:97) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[patched_1.17.1.jar:git-Paper-411] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[patched_1.17.1.jar:git-Paper-411] at java.lang.Thread.run(Thread.java:833) ~[?:?]

Please help me because I would like to use this plugin very much.