It looks like the job has been specified to use HTTP-tunnelling but the URL to the tunneller is blank or nonexistent.
try one or more of those:
1) open the jobfile in an editor and check the connection details. You can copy it here (or create a ticket) if you like. be careful not to expose confidential details!
2) start the wizard again and load the existing jobfile. Be careful to check that an URL is displayed in the HTTP tab of the connections manager
I cannot reproduce the issue you reported. I generate a jobfile and thesection reads like: