Trails have physical properties (Solid)

[Mathium]

So i've got this trail gun for my minigames server and the trails from the trail gun became solid when the gamemode was fixed for GM13. I've been attempting to figure out why, but I can't find it.

This is for the trail entity, not the actual weapon.

AddCSLuaFile( "cl_init.lua" )
AddCSLuaFile( "shared.lua" )

include('shared.lua')

/*---------------------------------------------------------
Initialize
---------------------------------------------------------*/
function ENT:Initialize()
	
	self:SetModel( "models/Gibs/HGIBS.mdl" )
	self:PhysicsInit( SOLID_VPHYSICS )	
	self.Entity:SetMoveType( MOVETYPE_VPHYSICS )
	self.Entity:SetSolid( SOLID_VPHYSICS )
	local phys = self.Entity:GetPhysicsObject()
	local trail = util.SpriteTrail(self.Entity, 0, Color(255, 255, 255, 255), false, 10, 10, 4, 1/(10+10)*0.5, string.gsub(self:GetOwner():GetNWString("currtrail"), "vtf", "vmt"))
	self.NextThink = CurTime() +  1

	if ( phys:IsValid() ) then
		phys:Wake()
		phys:SetMass( 1 )
	end

	self:GetPhysicsObject():SetMass( 1 )	
end

/*---------------------------------------------------------
Think
---------------------------------------------------------*/
function ENT:Think()
	
	self.lifetime = self.lifetime or CurTime() + 20
	if CurTime() > self.lifetime then
		self:Remove()
	end
end

/*---------------------------------------------------------
Disable
---------------------------------------------------------*/

/*---------------------------------------------------------
PhysicsCollided
---------------------------------------------------------*/
function ENT:PhysicsCollide( data, phys )
	
	local Ent = data.HitEntity
	if !(IsValid( Ent ) and Ent:IsWorld()) then return end

	if Ent:IsWorld() then
			util.Decal( "ManhackCut", data.HitPos + data.HitNormal, data.HitPos - data.HitNormal )
	elseif Ent.Health then
		if not(Ent:IsPlayer() and Ent:IsNPC() and Ent:GetClass() == "prop_ragdoll") then 
			util.Decal( "ManhackCut", data.HitPos + data.HitNormal, data.HitPos - data.HitNormal )
		end

		if (Ent:IsPlayer() and Ent:IsNPC() and Ent:GetClass() == "prop_ragdoll") then 
			local effectdata = EffectData()
			effectdata:SetStart( data.HitPos )
			effectdata:SetOrigin( data.HitPos )
			effectdata:SetScale( 1 )
			util.Effect( "BloodImpact", effectdata )
		end
	end

	self.Entity:SetOwner( NUL )
	
	self.Entity:Remove()
	
end

/*---------------------------------------------------------
Use
---------------------------------------------------------*/
function ENT:Use( activator, caller )
end

Any help is appreciated, thanks.