[1.16.3] Sidedness issue on dedicated server.

[ProsperCraft]

[17:37:46] [main/FATAL] [minecraft/Main]: Failed to start the minecraft server net.minecraftforge.fml.LoadingFailedException: Loading errors encountered: [ Useless Mod (uselessmod) has failed to load correctly §7java.lang.NoClassDefFoundError: net/minecraft/client/renderer/tileentity/ItemStackTileEntityRenderer ] at net.minecraftforge.fml.ModLoader.waitForTransition(ModLoader.java:268) ~[?:?] {re:classloading} at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:235) ~[?:?] {re:classloading} at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:193) ~[?:?] {re:classloading} at net.minecraftforge.fml.server.ServerModLoader.load(ServerModLoader.java:44) ~[?:?] {re:classloading} at net.minecraft.server.Main.main(Main.java:96) ~[?:?] {re:classloading} at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_262] {} at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_262] {} at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_262] {} at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_262] {} at net.minecraftforge.fml.loading.FMLServerLaunchProvider.lambda$launchService$0(FMLServerLaunchProvider.java:51) ~[forge-1.16.3-34.1.1.jar:34.1] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-7.0.1.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-7.0.1.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-7.0.1.jar:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-7.0.1.jar:?] {re:classloading} at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-7.0.1.jar:?] {re:classloading} at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63) [forge-1.16.3-34.1.1.jar:?] {} at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60) [forge-1.16.3-34.1.1.jar:?] {} at net.minecraftforge.server.ServerMain.main(ServerMain.java:57) [forge-1.16.3-34.1.1.jar:?] {}

[TheMCLoveMan]

This bug was fixed in 4.0.1 for 1.16.3