[imported_Promoe]

You didn't paste your ID to the variable.
Basically, you need to edit this line

var dagger='Your ID here'

Type ",info" in your client, target your dagger, "Text" window will appear. It will look like:

ID=0x4016D619 Type=0x0F52 XMNYMMD Name=
Quantity: 1 Colour: 0x0000 Layer: 0 Has: 1
X=109 Y=111 Z=0 C=0x410B75D8 F=0x00

You need to copy the ID and paste it to the first line of the script.
It doesn't work at the moment because it can't find a dagger..