Cannot play mp3 included in my HMTL code on Replit

I added an mp3 file to my html code on Replit. I can see the controls but they are greyed out and will not play anything.

This is the code:

         <audio controls> 
           <source scr="Darth-Vader-Noooo-Sound-Effect.mp3" type="audio/mpeg">
         </audio>

And a screenshot so that you can see the files on the left pane.

enter image description here

Thanks for your help!