I see! That will definitely be the cause, as Rubia really relies on this technology to function. Also, I misspoke: I meant Operation Iron Man, not Project Trashdragon. 2 things:
1) That is a very problematic implementation. In general, a mod deleting the technology prototypes of another mod will cause exactly this sort of crash, and I am flabberghasted that it doesn't already wreck your Cerys. Besides the one crash you identified, several other parts of my mod look at Operation Iron Man and its status to know what to do. I'll need to discuss with the guy who made this mod, but he isn't available to do anything until after Memorial day.
2) I am not sure how I feel about that mod on my planet. I know my planet is hard, but being allowed to drop whatever you want onto this planet really ruins this experience. I'll need to think about whether or not I should mark this as an incompatibility, or acknowledge that the whole point of this mod is to cheat and accept it.
For the time being, I recommend you play without the "Remove all Cargo drop technologies" mod.