Flash erase error -32 has occured

Arduino is showing Flash erase error. The detailed log is given below. Please help me solve the issue. I am using Mac.

Running Digispark Uploader...
Plug in device now... (will timeout in 60 seconds)

Please plug in the device ...
Press CTRL+C to terminate the program.
Device is found!
connecting: 16% complete
connecting: 22% complete
connecting: 28% complete
connecting: 33% complete
Device has firmware version 1.6
Available space for user applications: 6012 bytes
Suggested sleep time between sending pages: 8ms
Whole page count: 94 page size: 64
Erase function sleep duration: 752ms
parsing: 50% complete
Erasing the memory ...
erasing: 55% complete
erasing: 60% complete
erasing: 65% complete

Flash erase error -32 has occured ...
Please unplug the device and restart the program.

I have unplugged and restarted the program. But nothing happened. The error remains. Error received even while setting up blink program in my Digispark.

I would suggest that your un named Arduino is broken. Nothing much you can do about it except buy another.