This only happens for site users on Google Chrome. Other browsers work fine. The ads finish on schedule and on all the other browsers I have tried the ads disappear as expected. On Google Chrome the ads persist, even if all the adplugg settings indicate the ad is finished. If you check on dailybusinessgroup.co.uk the ads for “Johnston Carmichael” are set up on adplugg. The rest are on google Adsense.