404 on Page

Hello

When plugin is enabled looking at waterfall test of page we see the following 404 http://drop.frontporchsolutions.com/LpCv

We do not have enabled in pages http://drop.frontporchsolutions.com/p87k

This is happening on all pages but this is example one used in link below http://cpr.preview.cprsrvr.fpsdv.com/strongsville-oh/sell-my-device/

http://l.sharethis.com/pview?event=pview&version=st_insights.js&lang=en&fpc=e24f2f0-159d441990b-56328597-1&sessionID=1485324785936.53997&hostname=cpr.preview.cprsrvr.fpsdv.com&location=%2Fstrongsville-oh%2Fsell-my-device%2F&product=simpleshare&publisher=4d48b7c5-0ae3-43d4-bfbe-3ff8c17a8ae6&st_optout=false&ufa=35b3b20&ufb=90399c3&ufd=392f634&url=http%3A%2F%2Fcpr.preview.cprsrvr.fpsdv.com%2Fstrongsville-oh%2Fsell-my-device%2F&sharURL=&buttonType=ERROR&destination=ERROR&source=ERROR&title=Sell%20Your%20Cell%20Phone%20or%20Tablet%20for%20Cash%20in%20Strongsville%2C%20OH&ts1485324785937.0=