[00:55:37] [Server thread/WARN] [minecraft/CommandHandler]: Couldn't process command: gs reload
java.lang.NoClassDefFoundError: net/minecraft/server/integrated/IntegratedServer
        at com.cleanroommc.groovyscript.command.GSCommand.runReload(GSCommand.java:53) ~[GSCommand.class:?]
        at com.cleanroommc.groovyscript.command.GSCommand.lambda$new$1(GSCommand.java:76) ~[GSCommand.class:?]
        at com.cleanroommc.groovyscript.command.SimpleCommand.func_184881_a(SimpleCommand.java:43) ~[SimpleCommand.class:?]
        at net.minecraftforge.server.command.CommandTreeBase.func_184881_a(CommandTreeBase.java:164) ~[CommandTreeBase.class:?]
        at net.minecraft.command.CommandHandler.func_175786_a(CommandHandler.java:119) [bj.class:?]
        at net.minecraft.command.CommandHandler.func_71556_a(CommandHandler.java:91) [bj.class:?]
        at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:962) [pa.class:?]
        at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:941) [pa.class:?]
        at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:37) [la.class:?]
        at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:9) [la.class:?]
        at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [hv$1.class:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_201]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201]
        at net.minecraft.util.Util.func_181617_a(SourceFile:46) [h.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]
Caused by: java.lang.ClassNotFoundException: net.minecraft.server.integrated.IntegratedServer
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_201]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_201]
        ... 19 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@55caeb35 from coremod FMLCorePlugin
        at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:260) ~[forge-1.12.2-14.23.5.2860.jar:?]
        at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_201]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_201]
        ... 19 more
Caused by: java.lang.RuntimeException: Attempted to load class chd for invalid side SERVER
        at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:62) ~[forge-1.12.2-14.23.5.2860.jar:?]
        at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:256) ~[forge-1.12.2-14.23.5.2860.jar:?]
        at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_201]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_201]
        ... 19 more