why isn't the TileMapLayer working? [Error]

Godot Version

4.7.1.stable (linux)

Question

im facing a problem here
i followed all steps for making a simple tilemap
9x9 picure with 9 tiles each is 3x3 pixels in size
but i cant paint!?

have a look at the setup and the error

and i swear! (or at least i think) i did the setup right!!?
look!

i am a new user here maybe its too clear but i cant see it?
help please…

In the top gizmo bar you have the scene painter tool selected, you must have the one on the left selected.

The green arrow points at it:

Yes, the paintbrush icon is for painting scenes