Enabled Classes not working

Not using a cache plugin >
http://www.spiceandnyc.com (pin it button doesn’t work)
http://www.spiceandnyc.com/2017/05/02/caracas-arepa-bar/ ( pin it button does work )

using safari, also tried in chrome

tried enabling various classes to get homepage images to show pin button, tried leaving enabled classes empty and pin it button will only show on individual post pages.