evry scar i try dosent worck?

it dosen't have any errors i press play and it just goes crazy. so plz i need anyones help to set it up.

thank you!

 

Drag the crosshair onto the Runescape screen before you start it.

 

i did but it cant find the willows im trying to cut. ok well this is what i did :i opened scar i took the crosshair on my runescape window and i prest play it put my chat and all off and run on then it just goes crazy