Well, sorry to say, it's most likely not worth anything.
Random errors in mass produced toys aren't as sought after as recalled vintage baseball cards or things like that.
Nowadays, people don't want errors. They just want the toys and collectibles to be correct.
It's a supply and demand thing. It's a modern, mass produced item, with hundreds of thousands or even a million units out there. It's possible for errors to slip by. But the question is..is there any demand for that kind of thing these days? Maybe some eccentric collector that wants everything under the sun might pay a few dollars for it, but I can't see it being something people will seek out the way they seek out intentional variants and chase items.