Same here - this is an issue with Open Interiors. It just wont work and creates a continious loading screen before launch. Its a shame because the callouts look awesome with warrants etc. Pitty no one else has come up with an Open Interiors MOD since 2015!
If the author has a fix that would be great!
I am having this issue since installing Open Interiors for the new Variety Callouts script. Its black screen with spinning "Loading LSPDFR". I removed Open Interiors and that fixed it - if you have it installed maybe thats the same issue I had.