crash.log

22.07 09:00:59 [Multicraft] Received start command
22.07 09:00:59 [Multicraft] Loading server properties
22.07 09:00:59 [Multicraft] Starting server!
22.07 09:00:59 [Multicraft] Loaded config for "Custom.jar (Use and upload your own JAR)"
22.07 09:00:59 [Multicraft] Running setup...
22.07 09:01:00 [Setup/"Clean Mod Directories and Plugins" before setup] Deleting 'mods' directory...
22.07 09:01:00 [Setup/"Clean Mod Directories and Plugins" before setup] Deleting 'mod' directory...
22.07 09:01:00 [Setup/"Clean Mod Directories and Plugins" before setup] Deleting all jar files...
22.07 09:01:00 [Setup/"Clean Mod Directories and Plugins" before setup] Deleting all files in 'plugins'...
22.07 09:01:00 [Setup/"Clean Mod Directories and Plugins" before setup] Cleanup completed.
22.07 09:01:00 [Multicraft] Done, returned Ok
22.07 09:01:00 [Multicraft] Setup done, restarting
22.07 09:01:00 [Multicraft] Server stopped
22.07 09:01:03 [Multicraft] Loading server properties
22.07 09:01:03 [Multicraft] Starting server!
22.07 09:01:03 [Multicraft] Loaded config for "Custom.jar (Use and upload your own JAR)"
22.07 09:01:03 [Multicraft] Updating eula.txt file
22.07 09:01:03 [Server] INFO A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException
22.07 09:01:03 [Server] INFO at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
22.07 09:01:03 [Server] INFO at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
22.07 09:01:03 [Server] INFO at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
22.07 09:01:03 [Server] INFO at java.base/java.lang.reflect.Method.invoke(Method.java:566)
22.07 09:01:03 [Server] INFO at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43)
22.07 09:01:03 [Server] INFO at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)
22.07 09:01:03 [Server] INFO Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
22.07 09:01:03 [Server] INFO at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34)
22.07 09:01:03 [Server] INFO at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
22.07 09:01:03 [Server] INFO ... 6 more
22.07 09:01:03 [Multicraft] Server shut down (starting)
22.07 09:01:03 [Multicraft] Restarting crashed server in 5 seconds
22.07 09:01:03 [Multicraft] Looks like a crash, check the server console. Return value: 1
22.07 09:01:03 [Multicraft] Server stopped
22.07 09:01:05 [Multicraft] Received stop command
22.07 09:01:05 [Multicraft] Server stopped