Datapack BlingEdit is not working?

Gu
2

I downloaded the data pack BlingEdit for Minecraft, but it does not work! How can that be! I get in Minecraft at a Reload Although the message that BlingEdit is successfully loaded, but unfortunately the Datapack is not running!

no

Did you rename the sword properly?

Gu

Yes, I can't see the Red Courser to select!