Toddler says "You invited me to stay the night but then didn't let me get any sleep."

[Aserette]

Well, I was playing one of my legacy households and the husband's brother visited the lot. He walked in without me having to greet him and started playing darts..
Husband: Bobby. Brother: Harold.
Anyways, it gets into the early hours of the morning and I get this pop up "Cleve says: You invited me to stay the night, but then didn't let me get any sleep! I'm leaving!"

The problem is that the pop up just keeps spamming and Cleve isn't visible on the lot... Cleve is a toddler (even more bazarre) and is Harold's son. Now I can't play this household because I can't get the pop up to go away.
I tried spam clicking okay until the next day, maybe it would have gone away on it's own.. But it didn't, and it's still spamming when I try to play the household.

Any ideas how I can fix this, or why it happened?

I have all EPs and SPs, aswell as a few mods, but nothing that would change game coding to allow toddlers to come over.

[Mootilda]

You don't seem to have done the Game_Help:Game_Problem FAQ. That's the first step.

[bob.awesome]

I'm pretty sure that there is a CC mod for this.

[julianarosalia]

Bob, the first step in getting a game that's not functioning correctly to work again is to do the steps in the Game Problem faq. Just addding in new mods isn't always going to help matters but in fact can make things worse.