xml.etree.ElementTree.ParseError: None

[kesonn]

Hi! I had this error.
[2019-01-08 15:25:40,739] [DEBUG] [masscan.py 10 line] Scan parameters: "masscan -oX - 207.231.175.0/24 -p 443"
Traceback (most recent call last):
File "sslScrape.py", line 129, in
mas.scan(cidr, ports='443')
File "/Users/keson/Library/Python/2.7/lib/python/site-packages/masscan/masscan.py", line 317, in scan
masscan_warn_keep_trace=masscan_warn_keep_trace
File "/Users/keson/Library/Python/2.7/lib/python/site-packages/masscan/masscan.py", line 375, in analyse_masscan_xml_scan
raise ET.ParseError
xml.etree.ElementTree.ParseError: None