Sims 4 baby taken away

I just got the same thing. Except I have MC Cheats and I lost a toddler so I tried to summon her back but it said, "Kirsten Reynoso was not found" I also tried to adopt her back but she isn't showing in the options of kids to adopt. She wasn't hungry. She was sitting on the couch watching TV while her parents were trying for another kid. And so far no one is able to come up with a way to fix it except for not saving. I went back to manage worlds without saving and she's still not there. Should I just make another sims and have them adopt the little girl and have her move back in with her parents? I'm so lost and confused. Cause there was no reason for the kid to of been taken away....Right?