Description of the issue:

crash on startup from loading error of mod i think its due to updated version of ImmersiveEngineering-1.16.5-5.0.0-135

Crashlog:

https://pastebin.com/4V8UncJq

Versions & Modlist

ImmersivePetroleum-1.16.5-3.2.0-3.jar
ImmersiveEngineering-1.16.5-5.0.0-135
Forge 36.1.24
Minecraft 1.16.5

You didn't read the changelog.