Hi! I'm trying to startup a server with a modpack that I'm using from CurseForge. The modpack is one I made myself, so I installed all of the mods to the server. Although, whenever I try to join the server using the modpack version, it always says this (image attached below). Does anyone know how to fix this? And to avoid confusion, each time I had gotten this message, the server was completely turned on. I even tried making a new server after the first one didn't work, and both servers had the same message when I tried to join.