I have a Ghostery icon at the top right of my browser. I click on that and the info window opens up. There are two tabs. One is for simple view and the other is for detailed view. I did it under detailed view.

The screen is split into two vertical columns. In the left hand column there is a circle showing how many sites are active. I had 12 sites tracking, it now shows only 1. Below that is some info and below that are three rectangular buttons. The first now says 'Trust site' and has an un-ticked circle. The second says 'Restrict site' and has a ticked circle and the third says 'Pause Ghostery' and has drop down options about how long the pause will last.

This is how it looks when blocking is on. If you can find a button saying 'Trust Site' and it's ticked, click on it and it should be unticked and the ads will stop. Hope this helps.

Stan