Traceback (most recent call last):
  File "electrum\gui\qt\util.py", line 582, in input_qr_from_screenshot
  File "electrum\gui\qt\qrreader\__init__.py", line 62, in scan_qr_from_image
  File "electrum\qrreader\zbar.py", line 155, in read_qr_code
OSError: exception: access violation reading 0x00000007