ERROR WHEN DNS NOT RESOLVE

[evantoday]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. run vulnx
2. See error

requests.exceptions.ConnectionError: HTTPConnectionPool(host='a.com', port=80): Max retries exceeded with url: / (Caused by NewConnectionError('<requests.packages.url
lib3.connection.HTTPConnection object at 0x7f596cd86f60>: Failed to establish a new connection: [Errno -2] Name or service not known',))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/share/vulnx/vulnx.py", line 173, in
print('error : '+error)
TypeError: Can't convert 'ConnectionError' object to str implicitly