Need help with an error

[zhao]

I am having the same problem.

this is what i get in the log

Process Bot-5:
Traceback (most recent call last):
 File "multiprocessing\process.pyc", line 250, in _bootstrap
IOError: [Errno 2] No such file or directory: 'nul'
Process Bot-1:
Traceback (most recent call last):
 File "multiprocessing\process.pyc", line 250, in _bootstrap
IOError: [Errno 2] No such file or directory: 'nul'
Process Bot-1:
Traceback (most recent call last):
 File "multiprocessing\process.pyc", line 250, in _bootstrap
IOError: [Errno 2] No such file or directory: 'nul'

already did reinstallation of clashfarmer/memu/bluestack and restarted multiple time.
it has been working for a long time. >1year
my laptop specs is i7 6700 16gb ram gtx980 win10 64bit