There's two adult sims in the household, one of which is level 10 science, the other level 8 culinary - there are two children, one baby, two robots, and two cats in the household, but this error just started randomly - nothing related to jobs or professions was occurring at the time except for one sim writing a novel, which come to think of it I think she completed just before this started arising.

EDIT: This is occurring on all households in the affected save, making it unplayable as the error constantly appears every second whilst unpaused.

Not sure if this is a problem caused by other mods I have installed (nraas Relativity, Debug, and Portrait mods), but this error started popping up in one of my saves:



(http://imgur.com/DA0Ff7k)

This is on 1.66 with all EPs.