Getting this error whilst loading with different Jsons for different saves. Solved it by manually adding the angelsbioprocessing into the json and setting it to false. Looks in my case to be loading without the bobs mods, tries to load the bio mod first and crashes as there's no corresponding data for it. By turning it off it loads the others without loading the bio mod.
This is what I added, via notepad. Just copied the normal formatting for the file.
{
"name": "angelsbioprocessing",
"enabled": "false"
},
Hope that helps people!
EDIT: Once it's loaded the bobs mods into the json I "THINK" it shouldnt happen again. A.K.A once it's loaded in and you've exited and entered factorio again.