floor texturing troubles!

[VancelEnjoyer]

im having troubles mapmaking in hl2 beta. i put in a floor texture. but it comes up as an error ingame.
left is hammer, right is ingame,
https://drive.google.com/file/d/18YoNFoCNsavAnzOzxJm9Hc5k0-mVdGDa/view?usp=sharing