Subscriber Plugin Pages Are Blank

Hello, I installed the Subscriber plugin to track subscriber history, etc., but the plugin pages appear blank (see screenshot). Are there some configurations I need to set before the data will start to appear? Thank you!

Have you read the instructions on the subscriber plugin page, specifically, have you also installed the Common plugin that it needs?

That’s a link to the wrong page, this is the correct one

You must have installed Common Plugin otherwise you could not enable the Subscribers Plugin, but ensure that you have the latest version.