Dont find any carrier option except custom dial prefix

Hello Guys,

Can anybody help me, I just installed Goautodial with Asterisk version 1.8.23.0, the problem I am facing is I am not getting any other option but custom dial prefix option to select carrier i already did add carrier.

And I am also unable to run yum update i get error saying YumRepo Error: All mirror urls are not using ftp, http[s] or file....... error: cannot find a valid baseurl for repo: base.