Projectile staying after spamming

[Cjdite]

So, I have been working for awhile in a game, until there was this BUG that I was never able to fix, in the game, you shoot enemies, but when you spam… it just leaves the projectile there, and enemies can just walk into it, making it a trap for them… I want to get rid of that. Heres the link: https://arcade.makecode.com/S96641-03191-64491-17382