Lost communication with MCU 'mcu'

[coder-racer]

Good day, an error appears on a permanent basis Lost communication with MCU 'mcu'
Once the underlying issue is corrected, use the
"FIRMWARE_RESTART" command to reset the firmware, reload the
config, and restart the host software.
Printer is shutdown. I checked my cable and connector on the board and they work fine. I crimped all the cables and checked for contact, the contact did not disappear anywhere. I also changed the power supply. I don't see any problems on the 4.2.2 board