Wyze Robot - Stuck wheel error

So yesterday while I was out the robot vacuum ran and stopped in the middle of the room stating wheel stuck please clear and resume. When I got home I picked it up and it looked fine but heard a rattle when I picked up. Shook lightly and the nut in the photo dropped on the floor is this from inside the vac or did it pick it up somewhere I can’t think of where this would have come from in the house. I did set the bot back down and it seems to work ok. I’d like to know from Wyze if this type of nut is used inside the vac or not to let me know if it needs to be serviced, It was purchased around Thanksgiving last fall. Thanks for any help

I doubt that came out of the robot, there are probably very little if any nuts and bolts used inside of it. If the robot works fine now that you got that out it is probably ok. Is the wheel still stuck, or did that fix it?