Trying to fix an error in an addon

I’m trying to fix a bug in an addon that makes you get knocked down when an antlion guard charges you. Here’s the problem; After you get knocked down, the player’s view gets screwed up, and it can only be reset by killing yourself. Here’s the addon: https://www.dropbox.com/sh/7foouk1t0enmm9i/AABrJfBW1CmkkYy4AbYbMOC3a?dl=0

I’m not very experienced with lua, so if anyone could help I’d really appreciate it.

[editline]value[/editline]
Apparently there’s a fixed version:https://garrysmods.org/download/14183/zoeys-knockdown-addon-11zip
I still have the broken view though.