MaxiPy upgrade error

After flashing with the latest MaxiPy (maixpy_v0.3.2_full) to Go suit, nothing responses from the serial port. Then, I reset the Go. and got these messages.

interesting, something’s wrong, boot failed with exit code 233, go to find your vendor.
interesting, something’s wrong, boot failed with exit code 233, go to find your vendor.

Anyone can help?