I have tested each mod collectively and individually and only when i add your mod, any version to the mod folder i get a crash. Maybe its not playing nice with something else.

Running Fabric 0.7.2 build 174- 1. 14. 4, 10Gig of memory allocated. This is my last hurtle.

crash-2019-12-08_17.05.17-client.txt
Log 1.txt

This is actually caused by optifine, not Refined Machinery, also i no longer dev for mc so no further updates for my mods will be released. Not by me at least