We appear to be missing one or more essential library files.

McMyAdmin Updater - 2.1.1.0

Running in 64-bit mode.
Notice  : Detecting System...
Notice  : Windows Version: Microsoft Windows 10 Professionnel(64 bits)
Notice  : Detection complete.
Notice  : Detected Java runtime version 9.0.1
Warning : Port number is less than 1024, this may cause permission errors.
Notice  : Starting McMyAdmin Personal v2.7.0.2
Notice  : Checking for updates...
Notice  : Checking for Minecraft Server updates...
Notice  : Starting webserver...
Notice  : McMyAdmin has started and is ready for use.
Notice  : Server jar hash is 3d1a23b5-b7e8-28c9-9b73-123c6d573605
Notice  : Starting Minecraft Server...
Notice  : Minecraft server has stopped running.
Warning : Server was not yet ready, automatically restarting (Attempt: 1 of 5)
We appear to be missing one or more essential library files.
You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
Notice  : Server jar hash is 3d1a23b5-b7e8-28c9-9b73-123c6d573605
Notice  : Starting Minecraft Server...
We appear to be missing one or more essential library files.
You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
Notice  : Minecraft server has stopped running.
Warning : Server was not yet ready, automatically restarting (Attempt: 2 of 5)
Notice  : Server jar hash is 3d1a23b5-b7e8-28c9-9b73-123c6d573605
Notice  : Starting Minecraft Server...
We appear to be missing one or more essential library files.
You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
Notice  : Minecraft server has stopped running.
Warning : Server was not yet ready, automatically restarting (Attempt: 3 of 5)
Notice  : Server jar hash is 3d1a23b5-b7e8-28c9-9b73-123c6d573605
Notice  : Starting Minecraft Server...
We appear to be missing one or more essential library files.
You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
Notice  : Minecraft server has stopped running.
Warning : Server was not yet ready, automatically restarting (Attempt: 4 of 5)
Notice  : Server jar hash is 3d1a23b5-b7e8-28c9-9b73-123c6d573605
Notice  : Starting Minecraft Server...
We appear to be missing one or more essential library files.
You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source)
Notice  : Minecraft server has stopped running.
Warning : Server was not yet ready, automatically restarting (Attempt: 5 of 5)
Notice  : Server jar hash is 3d1a23b5-b7e8-28c9-9b73-123c6d573605
Notice  : Starting Minecraft Server...
We appear to be missing one or more essential library files.
You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
Notice  : Minecraft server has stopped running.
Error   : Server failed to start 5 times. Not automatically restarting.