"Configuration is not a valid member of Workspace"?

My output say Configuration is not a valid member of Workspace. What is it? Finished script:

PatchStuff=workspace["[PATCH]! ! ! READ ME ! ! !"].PatchStuff
Team1=PatchStuff.Team:Clone()
Team2=PatchStuff.Team:Clone()
WorkspaceItems=workspace.Configuration["Workspace Items"]
OriginalT1=WorkspaceItems.System.Team1Name.Team
OriginalT2=WorkspaceItems.System.Team2Name.Team
--Updating Workspace Tools
Team1:SetPrimaryPartCFrame(CFrame.new(Vector3.new(OriginalT1.RootPart.Position.X,OriginalT1.RootPart.Position.Y,OriginalT1.RootPart.Position.Z)))
Team2:SetPrimaryPartCFrame(CFrame.new(Vector3.new(OriginalT2.RootPart.Position.X,OriginalT2.RootPart.Position.Y,OriginalT2.RootPart.Position.Z)))
Team1.Parent=OriginalT1.Parent
Team2.Parent=OriginalT2.Parent
OriginalT1:Destroy()
OriginalT2:Destroy()

--updating gunbai UI
Cscript1=PatchStuff.LocalScript
Cscript2=PatchStuff.PlaceScript
if workspace.Configuration.ServerStorageItems.Weapons["ConstructionSupplies"]:FindFirstChild("LocalScript") then workspace.Configuration.ServerStorageItems.Weapons["ConstructionSupplies"]:FindFirstChild("LocalScript"):Destroy() end
if workspace.Configuration.ServerStorageItems.Weapons["ConstructionSupplies"]:FindFirstChild("PlaceScript") then workspace.Configuration.ServerStorageItems.Weapons["ConstructionSupplies"]:FindFirstChild("PlaceScript"):Destroy()end
Cscript1.Parent=workspace.Configuration.ServerStorageItems.Weapons["ConstructionSupplies"]
Cscript2.Parent=workspace.Configuration.ServerStorageItems.Weapons["ConstructionSupplies"]
t1=PatchStuff.Teamm1
t2=PatchStuff.Teamm2
if workspace.Configuration.ReplicatedStorageItems:FindFirstChild("Teamm1") then workspace.Configuration.ReplicatedStorageItems.Teamm1:Destroy()end
if workspace.Configuration.ReplicatedStorageItems:FindFirstChild("Teamm2") then workspace.Configuration.ReplicatedStorageItems.Teamm2:Destroy()end

t1.Parent=workspace.Configuration.ReplicatedStorageItems
t2.Parent=workspace.Configuration.ReplicatedStorageItems

--Flag Fix
WorkspaceItems.System.CapturePoint.RouteFlag.RFlagCap:Destroy()
PatchStuff.RFlagCap.Parent=WorkspaceItems.System.CapturePoint.RouteFlag

--RefillSpotFix
if workspace.Configuration.ServerStorageItems:FindFirstChild("Refill Spot") then
workspace.Configuration.ServerStorageItems:FindFirstChild("Refill Spot"):Destroy()
PatchStuff["Refill Spot"].Parent=workspace.Configuration.ServerStorageItems else
PatchStuff["Refill Spot"].Parent=workspace.Configuration.ServerStorageItems

tank1=PatchStuff.Settings
if workspace.Configuration.ServerStorageItems.Weapons["Tanken"].Handle:FindFirstChild("Settings") then workspace.Configuration.ServerStorageItems.Weapons["Tanken"].Handle:FindFirstChild("Settings") :Destroy() end
tank1.Parent=workspace.Configuration.ServerStorageItems.Weapons["Tanken"].Handle


end

if workspace.Configuration.ServerStorageItems.Mangonel.RockLoad.Projectile.BoomRock:FindFirstChild("SiegeDamage") then
    workspace.Configuration.ServerStorageItems.Mangonel.RockLoad.Projectile.BoomRock.SiegeDamage:remove()
    PatchStuff.SiegeDamage.Parent=workspace.Configuration.ServerStorageItems.Mangonel.RockLoad.Projectile.BoomRock
end


Mscript1=PatchStuff["Tachi"].SwordScript
Mscript2=PatchStuff["Naginata"].Script
Mscript3=PatchStuff["Katakama Yari"].Script
Mscript4=PatchStuff["Jumonji Yari"].Script
Mscript5=PatchStuff["Su Yari"].Script

if workspace.Configuration.ServerStorageItems.Weapons["Tachi"]:FindFirstChild("SwordScript") then workspace.Configuration.ServerStorageItems.Weapons["Tachi"]:FindFirstChild("SwordScript"):Destroy() end
if workspace.Configuration.ServerStorageItems.Weapons["Naginata"]:FindFirstChild("Script") then workspace.Configuration.ServerStorageItems.Weapons["Naginata"]:FindFirstChild("Script"):Destroy()end
if workspace.Configuration.ServerStorageItems.Weapons["Katakama Yari"]:FindFirstChild("Script") then workspace.Configuration.ServerStorageItems.Weapons["Katakama Yari"]:FindFirstChild("Script"):Destroy() end
if workspace.Configuration.ServerStorageItems.Weapons["Jumonji Yari"]:FindFirstChild("Script") then workspace.Configuration.ServerStorageItems.Weapons["Jumonji Yari"]:FindFirstChild("Script"):Destroy()end
if workspace.Configuration.ServerStorageItems.Weapons["Su Yari"]:FindFirstChild("Script") then workspace.Configuration.ServerStorageItems.Weapons["Su Yari"]:FindFirstChild("Script"):Destroy()end

Mscript1.Parent=workspace.Configuration.ServerStorageItems.Weapons["Tachi"]
Mscript2.Parent=workspace.Configuration.ServerStorageItems.Weapons["Naginata"]
Mscript3.Parent=workspace.Configuration.ServerStorageItems.Weapons["Katakama Yari"]
Mscript4.Parent=workspace.Configuration.ServerStorageItems.Weapons["Jumonji Yari"]
Mscript5.Parent=workspace.Configuration.ServerStorageItems.Weapons["Su Yari"]

Cchildren=workspace.Configuration:GetChildren()
for i=1,#Cchildren do
if Cchildren[i]:IsA("Camera") then
Cchildren[i].Name="Version 6.4"
end
end
PatchStuff:Destroy()
workspace["[PATCH]! ! ! READ ME ! ! !"]:Destroy()