So me and my friend thought it would be fun to try and make a modded forge server so we could play with each other, however, the forge universal .jar file wont open. I'm not sure if this is the right place for this but some help would be appreciated, it is worth noting that the regular forge 1.12.2 server will run fine, and we can both log into it, it's just the modded part that isn't working properly. I have tried taking all the mods out and it's still not working, I thought maybe some of the mods had dependencies or something. client side mods will work like optifine and the item bar thing, but others will not. I assume because I'm running a vanilla instead of the forge server.