Issue description:

Minecraft crashes on launch after the Forge startup but before the main menu

Steps to reproduce:

1. Launch Minecraft 1.15.1 with the latest Forge and Mekanism 1.15.1 versions.

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

Forge: 30.0.51
Mekanism: 9.9.3.394
Other relevant version:

If a (crash)log is relevant for this issue, link it here: (It's almost always relevant)

https://pastebin.com/xhFArJSG

Mek for 1.15.1 only works with Forge 30.0.43.
If you want the newer versions of Mekanism, you need to move to 1.15.2