Help,people can break doors with a shotgun! (DarkRP)

Okay so I own this server and I’m wondering if anyone knows or can make a script (im a noob at this,I think thats what its called) so shotguns dont break the doors when being shot,thanks!

This is also the the css weapons pack.

is it with 1 shotgun or every shotgun + place the code here and i will make it not shoot doors down. just go into garrysmod/addons/cssguns/lua/weapons/spas12/shared.lua and place code here