Had the same issue with my build, for some reason the shooting mechanic worked in the scene view but did not work in the build, took me a few hours to fix this issue
https://danes09.itch.io/charity-drive
I tried to create a quick fix version:
https://danes09.itch.io/charity-drive-quick-fix
basically just created the same project page and named it u quick fix and upload the fixed version,
Not sure if they will allow this though