Forge Server Not Working : java.lang.IllegalAccessError

[Enderbende]

Hi,

My Minecraft modded forge server does not work, I get an error saying this when starting up the server in the console:

[11:21:59] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 36.2.35, --fml.mcpVersion, 20210115.111550, --fml.mcVersion, 1.16.5, --fml.forgeGroup, net.minecraftforge, nogui]
[11:21:59] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 8.1.3+8.1.3+main-8.1.x.c94d18ec starting: java version 18 by Oracle Corporation
Exception in thread "main" java.lang.IllegalAccessError: class cpw.mods.modlauncher.SecureJarHandler (in unnamed module @0x5a955565) cannot access class sun.security.util.ManifestEntryVerifier (in module java.base) because module java.base does not export sun.security.util to unnamed module @0x5a955565
    at cpw.mods.modlauncher.SecureJarHandler.lambda$static$1(SecureJarHandler.java:45)
    at cpw.mods.modlauncher.api.LamdbaExceptionUtils.uncheck(LamdbaExceptionUtils.java:95)
    at cpw.mods.modlauncher.SecureJarHandler.<clinit>(SecureJarHandler.java:45)
    at cpw.mods.modlauncher.Launcher.lambda$new$6(Launcher.java:55)
    at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1708)
    at cpw.mods.modlauncher.api.TypesafeMap.computeIfAbsent(TypesafeMap.java:52)
    at cpw.mods.modlauncher.api.TypesafeMap.computeIfAbsent(TypesafeMap.java:47)
    at cpw.mods.modlauncher.Environment.computePropertyIfAbsent(Environment.java:62)
    at cpw.mods.modlauncher.Launcher.<init>(Launcher.java:55)
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)
    at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:49)
    at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:46)
    at net.minecraftforge.server.ServerMain.main(ServerMain.java:43)

[Enderbende]

Thank you, that worked.