I can not find the error source maybe one of you can help me.

Here is the log:

Daemon] Server marked as STARTING

[Daemon] Checking size of server data directory...

[Daemon] Disk Usage: 4788M / 25600M

[Daemon] Ensuring correct ownership of files.

[Daemon] Running server preflight.

[Daemon] Starting server container.

openjdk version "1.8.0_282"

OpenJDK Runtime Environment (build 1.8.0_282-b08)

OpenJDK 64-Bit Server VM (build 25.282-b08, mixed mode)

:/home/container$ java -Xms265M -Xmx12288M -jar server.jar

[11:31:53] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 36.0.14, --fml.mcpVersion, 20210115.111550, --fml.mcVersion, 1.16.5, --fml.forgeGroup, net.minecraftforge]

[11:31:53] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 8.0.9+86+master.3cf110c starting: java version 1.8.0_282 by Oracle Corporation

Exception in thread "main" java.lang.NoClassDefFoundError: cpw/mods/gross/Java9ClassLoaderUtil

at cpw.mods.modlauncher.TransformationServicesHandler.discoverServices(TransformationServicesHandler.java:139)

at cpw.mods.modlauncher.Launcher.run(Launcher.java:75)

at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)

at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63)

at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60)

at net.minecraftforge.server.ServerMain.main(ServerMain.java:57)

Caused by: java.lang.ClassNotFoundException: cpw.mods.gross.Java9ClassLoaderUtil

at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

at java.lang.ClassLoader.loadClass(ClassLoader.java:418)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)

at java.lang.ClassLoader.loadClass(ClassLoader.java:351)

... 6 more

[Daemon] Server marked as OFF

[Daemon] ---------- Detected server process in a crashed state! ----------

[Daemon] Exit Code: 1

[Daemon] Out of Memory: false

[Daemon] Error Response:

[Daemon] Aborting automatic reboot due to crash within the last 60 seconds.

I loaded the importet data from my old server and overwritten them to the new one (if you think its important to you: Java:8, forge: 1.16.5-36.1.6 modpack: "Selfcreated" but its the newest version from "all the mods 6" )

What do you need exactly?

 

I installed Forge on the server deleted it and seted a the new version of forge runned it started it that the new files generats and put the mods in. that all what i have done

on the web site was a function install forge 1.16.5... and then i installed on my pc the newest and i replaced them. it have work but we must change the server host for the reason we couldnt get more ram