Hi.
I've made a simple modpack, but it has a trouble.
First, it works well in singleplayer. However, when I try to open it in multiplayer, it gives error messages and goes back to the title or crashes. It's like when I used the Gregtech 5 Unofficial with forge version 1445-1481.
Linked is the client's crash log.
Lastly, for your information, both of server and client were using Forge ver 10.13.3.1428.