Addon spamming info entities causing engine crash

[Metamorphics]

I'm spawning info entities, but I shouldn't be spawning thousands. I can't quite spot out where the entities are being spammed and how to fix it, so I'm here. Thank you in advance.

--[[
	©2016 Metamorphics
  (STEAM_0:1:52851671 is the one and only author)
  Do not reupload this addon even if you made modifications.
]]--

AddCSLuaFile()

SWEP.PrintName 		= "The Flash SWEP"
SWEP.Author 		= "Metamorphics"
SWEP.Instructions 	= "Shift to run. Left click to punch. Right click for slow motion."
SWEP.Category 		= "The Flash Redux"
SWEP.Spawnable 		= true
SWEP.AdminOnly = false
SWEP.ViewModel 		= "models/weapons/c_arms.mdl"
SWEP.WorldModel 	= ""
SWEP.Base 			= "weapon_base"

SWEP.Primary.ClipSize 		= -1
SWEP.Primary.DefaultClip	= -1
SWEP.Primary.Automatic 		= true
SWEP.Primary.Ammo 			= "none"
SWEP.Secondary.ClipSize		= -1
SWEP.Secondary.DefaultClip	= -1
SWEP.Secondary.Automatic	= false
SWEP.Secondary.Ammo			= "none"
SWEP.speedmod 				= false
SWEP.timemod 				= false
SWEP.jumpcd 				= 0

SWEP.modAcceleration 		= 0.5
SWEP.HoldType 				= "normal"
SWEP.TrailMaterial = "trails/laser.vmt"

-----------------------------------------------Intialization-----------------------------------------------

if SERVER then
  hook.Add( "OnEntityCreated", "PlayerTrail", function( player )
      if ( player:IsPlayer() ) then
          player.Trail0 = NULL
          player.Trail1 = NULL
          player.Trail2 = NULL
          player.Trail3 = NULL
          player.Trail4 = NULL
          player.Trail5 = NULL
          player.Trail6 = NULL
          player.Trail7 = NULL
          player.Trail8 = NULL
          player.Trail9 = NULL
          player.Trail10 = NULL
          player.Trail11 = NULL
          player.Blur0 = NULL
      end
  end)
end

function SWEP:Deploy()
  local owner = self.Owner
	self:SetNetworkedInt( "DCFOV", self.Owner:GetFOV() )
	self.Owner:SetMaxSpeed(10000)
	self:SetHoldType(self.HoldType)
	self.Owner:SetFOV(120, 0.5)
	self.speedmod = true

  if SERVER then
    self.TrailTarget0 = ents.Create('info_target')
    self.TrailTarget0:Spawn()
    self.TrailTarget1 = ents.Create('info_target')
    self.TrailTarget1:Spawn()
    self.TrailTarget2 = ents.Create('info_target')
    self.TrailTarget2:Spawn()
    self.TrailTarget3 = ents.Create('info_target')
    self.TrailTarget3:Spawn()
    self.TrailTarget4 = ents.Create('info_target')
    self.TrailTarget4:Spawn()
    self.TrailTarget5 = ents.Create('info_target')
    self.TrailTarget5:Spawn()
    self.TrailTarget6 = ents.Create('info_target')
    self.TrailTarget6:Spawn()
    self.TrailTarget7 = ents.Create('info_target')
    self.TrailTarget7:Spawn()
    self.TrailTarget8 = ents.Create('info_target')
    self.TrailTarget8:Spawn()
    self.TrailTarget9 = ents.Create('info_target')
    self.TrailTarget9:Spawn()
    self.TrailTarget10 = ents.Create('info_target')
    self.TrailTarget10:Spawn()
  end
end

function SWEP:Holster()
	self.Owner:SetRunSpeed(400)
	self.Owner:SetFOV(self:GetNetworkedInt("DCFOV"), 0.5)
	self.Owner:SetWalkSpeed(200)
	self.Owner:SetJumpPower(200)
	self.speedmod = false
	self.CanPlayLightning = false

	if ( SERVER ) then
			 local owner = self:GetOwner()
       game.SetTimeScale(1)
			 if ( owner:IsValid() and owner.Trail0:IsValid() and self.TrailTarget0:IsValid() ) then
					 owner.Trail0:Remove()
           owner.Trail1:Remove()
           owner.Trail2:Remove()
           owner.Trail3:Remove()
           owner.Trail4:Remove()
           owner.Trail5:Remove()
           owner.Trail6:Remove()
           owner.Trail7:Remove()
           owner.Trail8:Remove()
           owner.Trail9:Remove()
           owner.Trail10:Remove()
           owner.Trail11:Remove()
           //owner.Blur0:Remove()
           self.TrailTarget0:Remove()
           self.TrailTarget1:Remove()
           self.TrailTarget2:Remove()
           self.TrailTarget3:Remove()
           self.TrailTarget4:Remove()
           self.TrailTarget5:Remove()
           self.TrailTarget6:Remove()
           self.TrailTarget7:Remove()
           self.TrailTarget8:Remove()
           self.TrailTarget9:Remove()
           self.TrailTarget10:Remove()
			 end
	 end

	return true
end

function SWEP:DrawHUD()
  Width = surface
	local Speed = tostring(math.Round(self.Owner:GetVelocity():Length()))
	local tachyonequipstatus = tostring(self.Owner:GetNWBool( "Tachyon Status", false ))
	draw.SimpleText("Speed: ".. Speed, "ChatFont", 8, 8, Color(255,255,255,255), TEXT_ALIGN_LEFT, TEXT_ALIGN_CENTER )
	draw.SimpleText("Tachyon Device: "..tachyonequipstatus, "ChatFont", 8, 24, Color(255,255,255,255), TEXT_ALIGN_LEFT, TEXT_ALIGN_CENTER )
  draw.SimpleText("Version: 2.0 [dev]", "ChatFont", ScrW()-128, 8, Color(255,255,255,255), TEXT_ALIGN_RIGHT, TEXT_ALIGN_CENTER )
end

-----------------------------------------------Attacks-----------------------------------------------

function SWEP:PrimaryAttack()
	self.Weapon:SetNextPrimaryFire(CurTime() + 0.05)
	self.Weapon:SendWeaponAnim(ACT_VM_HITCENTER)
	self.Owner:SetAnimation(PLAYER_ATTACK1)
	local trace = self.Owner:GetEyeTrace()
  vel = self.Owner:GetVelocity():Length()
	if trace.HitPos:Distance(self.Owner:GetShootPos()) <= 75 then
		bullet = {}
		bullet.Num    = 1
		bullet.Damage = vel*0.1
		bullet.Src    = self.Owner:GetShootPos()
		bullet.Dir    = self.Owner:GetAimVector()
		bullet.Spread = Vector(0, 0, 0)
		bullet.Tracer = 0
		bullet.Force  = 100000000000000000
	    self.Owner:FireBullets(bullet)
	    self.Weapon:SendWeaponAnim( PLAYER_ATTACK1 );

		if SERVER then
	        local hitposent = ents.Create("info_target")
	        local trace = self.Owner:GetEyeTrace()
	        local hitpos = trace.HitPos

			local tr = {}
			tr.start = self.Owner:GetShootPos()
			tr.endpos = self.Owner:GetShootPos() + ( self.Owner:GetAimVector() * 50 )
			tr.filter = self.Owner
			tr.mask = MASK_SHOT

			local trac = util.TraceLine( tr )
			if ( trac.Hit ) then
				return
			end
			self.Weapon:SendWeaponAnim(PLAYER_ATTACK1)
		end
	end
end

function SWEP:SecondaryAttack()
	self.Weapon:SetNextSecondaryFire( CurTime() + 0.2 )
		if (SERVER) then
			self.timemod = !self.timemod
			if self.timemod == true then
				game.SetTimeScale(0.2)
			elseif self.timemod == false then
				game.SetTimeScale(1)
			end
		end
end

-----------------------------------------------Trails-----------------------------------------------

function SWEP:TrailFollow()
  local owner = self:GetOwner()

  self.BoneID0 = owner:LookupBone("ValveBiped.Bip01_Spine")
  self.BoneID1 = owner:LookupBone("ValveBiped.Bip01_L_Thigh")
  self.BoneID2 = owner:LookupBone("ValveBiped.Bip01_R_Thigh")
  self.BoneID3 = owner:LookupBone("ValveBiped.Bip01_L_Calf")
  self.BoneID4 = owner:LookupBone("ValveBiped.Bip01_R_Calf")
  self.BoneID5 = owner:LookupBone("ValveBiped.Bip01_L_Foot")
  self.BoneID6 = owner:LookupBone("ValveBiped.Bip01_R_Foot")
  self.BoneID7 = owner:LookupBone("ValveBiped.Bip01_Spine2")
  self.BoneID8 = owner:LookupBone("ValveBiped.Bip01_L_UpperArm")
  self.BoneID9 = owner:LookupBone("ValveBiped.Bip01_R_UpperArm")
  self.BoneID10 = owner:LookupBone("ValveBiped.Bip01_Pelvis")

	self.Pos0 = owner:GetBonePosition( self.BoneID0 )
  self.Pos1 = owner:GetBonePosition( self.BoneID1 )
  self.Pos2 = owner:GetBonePosition( self.BoneID2 )
  self.Pos3 = owner:GetBonePosition( self.BoneID3 )
  self.Pos4 = owner:GetBonePosition( self.BoneID4 )
  self.Pos5 = owner:GetBonePosition( self.BoneID5 )
  self.Pos6 = owner:GetBonePosition( self.BoneID6 )
  self.Pos7 = owner:GetBonePosition( self.BoneID7 )
  self.Pos8 = owner:GetBonePosition( self.BoneID8 )
  self.Pos9 = owner:GetBonePosition( self.BoneID9 )
  self.Pos10 = owner:GetBonePosition( self.BoneID10 )

	self.TrailTarget0:SetPos( self.Pos0  )
  self.TrailTarget1:SetPos( self.Pos1  )
  self.TrailTarget2:SetPos( self.Pos2  )
  self.TrailTarget3:SetPos( self.Pos3  )
  self.TrailTarget4:SetPos( self.Pos4  )
  self.TrailTarget5:SetPos( self.Pos5  )
  self.TrailTarget6:SetPos( self.Pos6  )
  sel

[Pyro-Fire]

SWEP:Holster() isn't fully reliable for removing the entities, like if the player dies.
That stuff should be in SWEP:OnRemove(), or both (specially in this case)

Or simply have the weapon check if the entities already exist before spawning them, that way you pretty much dont have to change anything par adding one if statement to check one of them.

Would be nice to know more, like how long does it take for the crash to happen etc, but i'm guessing that your server runs for a while with players using it before it will crash.
Either of these 2 should work for you.

Enjoy~