I keep getting error messages for Justine Keaton, sometimes 20 at a time. I've clicked on the messages several times and found her at just about as many different locations. Every time she's carrying her toddler. The Null Reference Exception line has references to a stroller, which I never see her with. What is the best way to stop this? I would guess that if I aged up the toddler with MC, that would probably do it, but I'd rather let him age up naturally if there's some other way. On the other hand, I have been tempted several times to annihilate both her and the toddler, so aging him up would at least be better than that.

1 - Before aging or annihilating anyone, perhaps we could see some of the resulting script error logs?
<a href="http://nraas.wikispaces.com/How%20To%20 ... 0Upload</a>

2 - Are you on the fully released v44 of GoHere, not a prior version and not one of the former beta testing ones?

OK, I uploaded 3 of the script error logs. I think I'm using version 43, but I'm not in my game right now. But I save the downloaded files, and the only version of Go Here I have in that folder is 43.

Okay, you're right in that Justine and her toddler keep route failing and they all have something to do with her trying to use a stroller but being unable to. They also all, or at least all of the ones you uploaded, have to do with going to or leaving to go home from "the 28 hour gym." Might be something with that lot or something in between in and her home that's really not stroller friendly? Chain would have to tell us the meaning of those errors more fully. I'm kind of surprised that Overwatch hasn't stepped in with route failure notifications and offers to reset the two of them, though of course that would only be a temporary fix until they tried to go to the gym or wherever else this happens again.

In the meantime, on that game folder you are a version behind on the following mods. Can't say this is going to fix the Justine issue, but it is best to stay current if possible.
GoHere*
MasterController and its add-on modules
Register
Tagger
Traveler

*The new version of GoHere especially is the one that fixes Disallowed Boat Routing so that it actually works and without freezing the game, as well as optional customizable door locks.

Those were the most recent script errors. I didn't want to send too many. It wasn't always the gym when I looked for her. She also was at the diner a couple of times, and once she was at Summerhill Springs. A couple of times I even found her at home. Probably some of the other files would indicate those other locations.

Have you tried MC Resetting her and her household since this started happening?

There's something wrong with the stroller or her inventory. Are you able to make her active and interact with her inventory fine? Is there a stroller there? Delete it.

@Igazor, no I did not try that. The first time I clicked on the message and found her at her home, I used MC object stats to delete a child placeholder jig I found there. But that made no difference, so I assumed it wasn't related to her home or household, and didn't think to try resetting them. I have updated all the mods you listed.

@Chain_Reaction I was able to access her inventory with MC's object stats and delete two strollers. Hopefully, that will take care of the problem.

Thanks, guys.

Unfortunately, the issues has not been solved. My sims just got back from Egypt, and I have started getting the same messages again. I found Justine with her new baby at the science center, checked with MC, and sure enough, she has the same stroller in her personal inventory. The script error messages are the same as the previous ones too.

What I don't understand is why this is not happening with any other sims. There are several other sims in town with babies and toddlers. I see them pushing them around town in the same stroller that is giving Justine so much trouble, and never get any such messages for any of them. It's only her that has the problem.