Ringtone w/ Dotted Circle
I bought a ringtone off iTunes a while back and one day I noticed when I got a call it was no longer my ringtone. When checking iTunes the ringtone is still there but a grey dotted circle appears next to it and I can't get the ringtone back on my phone. What can I do to get this ringtone back onto my phone without having to pay for it again?
iPhone 5, iOS 7.1.1