Hello, me and my friends downloaded a modpack called Mianite Reborn, and were running it smoothly and effectively. We decided we wanted to add 2 mods (Mo' Creatures and Myths and Monsters), but after that happened, my friends were crashing upon joining the server. I was running it completely fine, but now whenever my friends join they crash after a few seconds of being in. I removed the 2 new mods from the pack (they removed it from their game as well) yet they still crash upon joining. I have searched far and wide and could not find a solution. This is one my friends' crash reports: https://pastebin.com/e9Xf3UWP . Any help would be appreciated, thanks!