test-device-ping360 fails to turn off motor

I am testing the ping360 with [test-device-ping360.cpp](https://github.com/bluerobotics/ping-cpp/blob/master/test/test-device-ping360.cpp) and it keeps failing to turn off the motors, I got the following output:
```
Test Device initialization: SUCCESS
Test Device type: SUCCESS
Test Device ID: SUCCESS
Test Ping protocol version: SUCCESS
Firmware version: 3.3.8
Test Check 400 transducer messages: SUCCESS
Test Check 400 auto transducer messages: SUCCESS
Test Turn off motor: ERROR
terminate called after throwing an instance of 'std::runtime_error'
what(): Test failed: Turn off motor
Aborted (core dumped)
```

Any suggestions for fixing this?