Urdf loader not able to load the robot from urdf file

i have created a 3D scene for my 3D visualisation but my robot is not being able to load in the web browser in the console i am getting a message that shows 0 out of 1 files loaded and robot is undefined
I am also attaching the ss for the error

You’ll probably need to make a jsfiddle or codesandbox to get someone to look into this…
My first guess is that it’s just not finding the file at that URL… and the loader is trying to parse the 404 error response.

so what must go wrong like is it the issue in urdf file or there is something wrong in the javascript file
someone can see the issue there and help me to solve it .
The file is not loading but i have linked as per my urdef file path