Crash when starting server

[Prins_Ed]

I have created a very simple mod that is just supposed to send a message to a player when they join. Upon adding it to a server (that has other mods on it), the following crash message appears:
[12:13:01] [main/ERROR] [minecraft/Main]: Failed to start the minecraft server
net.minecraftforge.fml.LoadingFailedException: Loading errors encountered: [
        Epic Mod (epicmod) has failed to load correctly
§7java.lang.NoSuchMethodException: net.ed.epicmod.EpicMod.<init>()
]
        at net.minecraftforge.fml.ModLoader.waitForTransition(ModLoader.java:243) ~[fmlcore-1.19.2-43.2.14.jar%23548!/:?] {}
        at net.minecraftforge.fml.ModLoader.lambda$dispatchAndHandleError$24(ModLoader.java:208) ~[fmlcore-1.19.2-43.2.14.jar%23548!/:?] {}
        at java.util.Optional.ifPresent(Optional.java:178) ~[?:?] {re:mixin}
        at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:208) ~[fmlcore-1.19.2-43.2.14.jar%23548!/:?] {}
        at net.minecraftforge.fml.ModLoader.lambda$gatherAndInitializeMods$14(ModLoader.java:185) ~[fmlcore-1.19.2-43.2.14.jar%23548!/:?] {}
        at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] {re:mixin,re:computing_frames}
        at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:185) ~[fmlcore-1.19.2-43.2.14.jar%23548!/:?] {}
        at net.minecraftforge.server.loading.ServerModLoader.load(ServerModLoader.java:32) ~[forge-1.19.2-43.2.14-universal.jar%23552!/:?] {re:classloading}
        at net.minecraft.server.Main.main(Main.java:113) ~[server-1.19.2-20220805.130853-srg.jar%23547!/:?] {re:classloading,re:mixin,pl:mixin:A}
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
        at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
        at net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:29) ~[fmlloader-1.19.2-43.2.14.jar%2367!/:?] {}
        at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-10.0.8.jar%2354!/:?] {}
        at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-10.0.8.jar%2354!/:?] {}
        at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-10.0.8.jar%2354!/:?] {}
        at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-10.0.8.jar%2354!/:?] {}
        at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-10.0.8.jar%2354!/:?] {}
        at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-10.0.8.jar%2354!/:?] {}
        at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-10.0.8.jar%2354!/:?] {}
        at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) [bootstraplauncher-1.1.2.jar:?] {}

Why could this be? I have tried using the mod on another forge server with only this mod installed and it works there. Is my mod somehow interfering with other mods?
MC version is 1.19.2