Hey ! I create a server for me and my friends and... An error appears when I launch the game:

minecraft_server.jar version : 1.12.2
forge-universal.jar version : 1.12.2-14.23.5.2854
forgeessential.jar version : 1.12.2-12.3.60-server

✅ - Last version "stable" of Forge Essential
✅ - Checked for the same bug (I found a similar, but not same)
✅ - Logs :

• Logs : 2020-11-08-7.log.gz
• Debug (lastest) : debug.log
• Forgeessential/modlist : Nothing in my folders (no modlist.txt, no "essentialforge.cfg" in config... nothing)
• Crash.txt ? : No crash.txt, nothing was saved as "crash-yyyy-mm-dd_hh.mm.ss.txt"

2020-11-08-7.log(.gz)
[23:44:34] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker [23:44:34] [main/INFO] [LaunchWrapper]: Loading tweak class name com.forgeessentials.core.preloader.FELaunchHandler [23:44:34] [main/INFO] [LaunchWrapper]: Loading tweak class name org.spongepowered.asm.launch.MixinTweaker [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:34]: java.lang.reflect.InvocationTargetException [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:34]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:34]: at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:34]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:34]: at java.lang.reflect.Method.invoke(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:34]: at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:34]: at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: Caused by: java.util.ServiceConfigurationError: org.spongepowered.asm.service.IMixinServiceBootstrap: Provider org.spongepowered.asm.service.modlauncher.MixinServiceModLauncherBootstrap could not be instantiated [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.util.ServiceLoader.fail(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.util.ServiceLoader.access$100(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.util.ServiceLoader$LazyIterator.nextService(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.util.ServiceLoader$LazyIterator.access$700(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.util.ServiceLoader$LazyIterator$2.run(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.security.AccessController.doPrivileged(Native Method) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.util.ServiceLoader$LazyIterator.next(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.util.ServiceLoader$1.next(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at org.spongepowered.asm.service.MixinService.runBootServices(MixinService.java:77) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at org.spongepowered.asm.service.MixinService.<init>(MixinService.java:72) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at org.spongepowered.asm.service.MixinService.getInstance(MixinService.java:92) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at org.spongepowered.asm.service.MixinService.boot(MixinService.java:102) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at org.spongepowered.asm.launch.MixinBootstrap.<clinit>(MixinBootstrap.java:76) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at org.spongepowered.asm.launch.MixinTweaker.<init>(MixinTweaker.java:44) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.lang.reflect.Constructor.newInstance(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at java.lang.Class.newInstance(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:98) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [23:44:34] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:75]: ... 6 more [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.SecurityException: class "org.spongepowered.asm.service.ServiceInitialisationException"'s signer information does not match signer information of other classes in the same package [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.checkCerts(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.preDefineClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.defineClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.security.SecureClassLoader.defineClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.net.URLClassLoader.defineClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.net.URLClassLoader.access$100(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.net.URLClassLoader$1.run(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.net.URLClassLoader$1.run(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.security.AccessController.doPrivileged(Native Method) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.net.URLClassLoader.findClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.loadClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.loadClass(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.Class.getDeclaredConstructors0(Native Method) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.Class.privateGetDeclaredConstructors(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.Class.getConstructor0(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.Class.newInstance(Unknown Source) [23:44:34] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: ... 25 more

I think the error is IN the code, idk really how it works but I need help, or just a patch :p
have a good day !
[EDITED]

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