Issue description:

Game crashed on load. Forge Devs said to contact you.

What happens:

crash

What you expected to happen:

Game to load

Steps to reproduce:

1.download mod
2.start game

Version (make sure you are on the latest version before reporting):

• Minecraft:1.12.2
• Forge:1.12.2.14.23.4.2725
• Refined Storage:1.6.16

Does this issue occur on a server? [yes/no]
don't know

If a (crash)log is relevant for this issue, link it here:

https://pastebin.com/yeRYSpcZ

You are 100+ Forge versions behind. Update.

It's for a mod pack and many mods aren't updated to 1.15.

You are 100 versions behind for forge 1.12.2.
Latest version for 1.12.2 is something like 2870. You are on 2725