Normally you would only add the Shortcode for the review template to the pages you want to show the reviews on. How are you adding the reviews to all the pages?

That place ID looks okay. You can check what the Google API is returning to the plugin with the following link. Replace the Place_ID with your business Place_ID and the YOUR_API_KEY with your Google API.

https://maps.googleapis.com/maps/api/place/details/json?placeid=YOUR_PLACE_ID&key=YOUR_API_KEY

That usually means that you are using the wrong place id. What place id are you using?

If you use 2 different methods to download the reviews then you can get duplicates. Make sure to turn off the Get Reviews > Google method if you are going to use the Get Reviews > Review Funnel method.