1.15.2 Forge server error

[Blitzwinger]

this happens every time i launch the run.bat

←[32m[08:03:11] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 31.2.57, --fml.mcpVersion, 20200515.085601, --fml.mcVersion, 1.15.2, --fml.forgeGroup, net.minecraftforge, nogui]
←[m←[32m[08:03:11] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 5.1.2+70+master.2845bb9 starting: java version 16.0.1 by Oracle Corporation
←[m←[32m[08:03:12] [main/INFO] [ne.mi.fm.lo.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
←[m←[32m[08:03:12] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.2 Source=file:/C:/Users/harry/OneDrive/Desktop/Forge%201.15.2%20server/libraries/org/spongepowered/mixin/0.8.2/mixin-0.8.2.jar Service=ModLauncher Env=SERVER
←[mException in thread "main" ←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]: java.lang.NoClassDefFoundError: jdk/nashorn/api/scripting/NashornScriptEngineFactory
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.coremod.CoreModEngine.loadCoreMod(CoreModEngine.java:48)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.coremod.CoreModProvider.addCoreMod(CoreModProvider.java:12)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
←[m←[32m[08:03:12] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.fml.loading.LoadingModList.addCoreMods(LoadingModList.java:88)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer.discoverMods(ModDiscoverer.java:125)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.fml.loading.FMLLoader.beginModScan(FMLLoader.java:213)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.fml.loading.FMLServiceProvider.runScan(FMLServiceProvider.java:107)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at cpw.mods.modlauncher.TransformationServiceDecorator.runScan(TransformationServiceDecorator.java:111)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at cpw.mods.modlauncher.TransformationServicesHandler.lambda$runScanningTransformationServices$8(TransformationServicesHandler.java:115)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:273)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1766)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at cpw.mods.modlauncher.TransformationServicesHandler.runScanningTransformationServices(TransformationServicesHandler.java:116)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at cpw.mods.modlauncher.TransformationServicesHandler.initializeTransformationServices(TransformationServicesHandler.java:63)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at cpw.mods.modlauncher.Launcher.run(Launcher.java:75)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1069]:       at net.minecraftforge.server.ServerMain.main(ServerMain.java:57)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1078]: Caused by: java.lang.ClassNotFoundException: jdk.nashorn.api.scripting.NashornScriptEngineFactory
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1078]:       at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:636)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1078]:       at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:182)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1078]:       at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
←[m←[32m[08:03:13] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1078]:       ... 35 more
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