So, I wanted to play Mineshafts & Monsters on a server from Aternos, but it lags so bad it's unplayable. I went to Curseforge and disabled some of the heaviest single-mods from the Mineshafts & Monsters modpack. I started the server and went in and got the error "disconnected from the server host".
I think it might be because the Mineshafts & Monsters modpack that I installed on the Aternos server is "complete", while in the Curseforge app it's now lacking some of them, so they go into conflict. Am I right? Is there a way to fix it? My pc works 100% fine in singleplayer (loads everything), so I know that's not the issue. Many thanks!