Crash when starting.

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

• Minecraft: 1.16.5
• Forge: 36.2.8
• Refined Storage: 1.9.15

Does this issue occur on a server? [yes/no]

No

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

NA
[pastebin/gist/etc link here]