There are no stats to select from when price checking ​

If you don't see any stats, or only see basic item properties on weapons/armour, then it means that the tool receives from the game item text without any mods.

Make sure to check the logs first.

• Maybe you've bound an unsupported key for "Advanced Descriptions". For example, APT cannot press mouse buttons.
• Maybe you've non-ALT key bound for "Advanced Descriptions" but the PoE configuration file is in an unusual location.
• Maybe you won't find any clues there at all, simply because it's a key conflict with another running application on your PC.

Anyway, you need to make PoE copy the item with mods when the Ctrl + Highlight + C is pressed.

What's a "Highlight" key? What should the mods look like in the copied text?
You can see on the images from related page.