Error while running python sublert.py -l -r first time

[n0sandb0x]

I have installed the tool as the way you mentioned in the program but facing some error like this

requests.exceptions.ConnectionError: HTTPSConnectionPool(host='https', port=443): Max retries exceeded with url: //hooks.slack.com/services/(Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f2de081e190>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',))

[n0sandb0x]

this error occurs while exporting result to slack