That error means JeVois was disconnected somehow. It could either be a crash, or a mechanical issue at the connector. USB connectors are not designed for mechanical stress, so you should use strain relief for the connector and cable when mounting on a robot. Have a look at this one, it is super nice:
See how there is a clamp for the USB connector behind the camera. You secure the cable to the mount using a zip tie once the cable and camera are mounted.
On the software side, we have cameras running 24 hours a day for months here with no problem... In the JeVois inventor console or your Arduino console, try things like "shell free" and monitor the amount of free RAM over time. If it is going down (beyond small fluctuations), then maybe your code is leaking memory or crashing somehow. To investigate that, try to run our TensorFlowEasy code on your camera. This one is pretty brutal, gets near 400% of CPU usage. If that one is stable, then the hardware is ok. If that one crashes and you are not moving the camera around, maybe the hardware has a problem.
that video of a very short run also suggests that maybe you have a power issue. Make sure you use a Y cable, and that your computer can indeed source 500mA each port. Small boards like the raspberry pi typically cannot, since they are powered from a single USB port themselves.Have a look here for tips: