Projectile can't inflict damage

[Sullixou]

Hi, I've a problem with my projectile, he isn't detected in my Linetrace.
https://image.noelshack.com/fichiers...-ecran-160.png
https://image.noelshack.com/fichiers...-ecran-161.png

I've some problems to upload file, it's say tmp file ^^

Thanks you very much to help me ^^