Strange error - logs attached

[Mitch]

Hey guys:

Curious about this repeating error in my logs... Any ideas how to address this if its an issue?

Oct 17 16:59:58 ntpclient: gethostby*.getanswer: asked for "time.nist.gov IN A", got type "46"
Oct 17 16:59:58 ntpclient: gethostby*.getanswer: asked for "time.nist.gov IN A", got type "46"
Oct 17 16:59:58 ntpclient: gethostby*.getanswer: asked for "time.nist.gov IN A", got type "46"
Oct 17 16:59:58 ntpclient: gethostby*.getanswer: asked for "time.nist.gov IN A", got type "46"

Constantly happening.