proxy failed due to {'status': 407, 'reason': b'Proxy Authentication Required'}

[AI0514-KISHORE]

Hi i getting this error may time i have used my own custom middleware i have passed proxy like this http://username:password@104.120.33.32:12345"

error message
scrapy.core.downloader.handlers.http11.TunnelError:Could not open CONNECT tunnel with proxy 104.120.33.32:12345 [{'status': 407, 'reason': b'Proxy Authentication Required'}]

[Aragonski97]

Same issue