A glitch/bug causing my Sims not to eat

There's been a couple of times now where one of my save files I can't get my Sims to eat, mainly my children Sims. They'll have the food in front of them but they'll just sit there and the only way I can get them to actually eat is if I cancel the action multiple times before they finally eat. I don't want my Sims to die or to be taken away because of a bug