Minecraft Crash, wer mir die Lösung sagt kriegt 1Mio

Hallo meine MultiMC Instanz Crasht immer aus folgendem Grund :

Using onesix launcher.

Failed to start Minecraft:

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')

at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)

at java.base/java.lang.reflect.Method.invoke(Method.java:580)

at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:243)

at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:278)

at org.multimc.EntryPoint.listen(EntryPoint.java:143)

at org.multimc.EntryPoint.main(EntryPoint.java:34)

Exiting with -1

Prozess endete mit dem Status -1 (0xffffffffffffffff).

DISCORD: seaskullhunter

Lag an der Version, danke an Badisch09,

#close