Shop - message from attempting to access invalid page with command

This is an issue in both RPG and Factions. Few players will run into this but making note of this If you attempt to access an invalid shop page, the message it gives is a little strange. Here is an example from Factions "Shop Blocks Shop Page 10 with page 10 not found." It says "page 10" twice, also "shop blocks shop" seems odd. (I think what's occurring is it's listing the GUI title as if that page existed)