I have also faced this issue and as a solution I have removed the domain protocol i.e. http: or https: and just used //example.com solved the issue in URL field value.
You can find further info / help related to this in the link below :
http://support.advancedcustomfields.com/forums/topic/options-page-not-working-with-godaddy/
Thanks!
My site is also not hosted at GoDaddy and like said above changing the URL field to Text doesn’t solved my issue instead I have removed the domain protocol i.e. http: or https: and just used //example.com solved the issue.
Thanks !