i Don't have that exact software version anymore and you couldn't do much with it because it communicates via CAN-bus with some other devices you probably don't have.
the sending to pybytes parts looks a lot like the provided example.
the time it crashed i didn't update a part i only tried to open the flash tab in pybytes.
i get theError publish [Errno 12] ENOMEM
more if i increase the wait time between some data bursts. with 60 seconds almost never but with 600 seconds more often.