Children Sims Getting Taken Away

Hey can anyone help me?

Both my children sims in my legacy challenge that I'm playing both have been taken away due to neglect because of their grades even though they both have A grades in school; this occurs around 6pm every Sunday after New Years Eve before they start up school again. I have gotten rid of a school mod as my game was lagging after the update and since it's gone now I don't know what's causing my sims to get taken away.