Function Firing Multiple TImes?

I have made a placement system and, it works to place. However, when I do place for the second time the function below fires two times. And so on if I place the third time It fires the function 3 times.

UIS.InputBegan:Connect(function(input)
						if input.UserInputType == Enum.UserInputType.MouseButton1 then
							if placingStructure == true then
								if goodToPlace == true then
									local StructureCFrame = clientStructure.CFrame
									placedStructure = PlaceStructure:InvokeServer(clientStructure.Name, StructureCFrame)
									AddToNumberValue:FireServer(clientStructure.Name)
									if placedStructure == true then
										placingStructure = false
										clientStructure:Destroy()
										StructureFrame.Visible = true
									end

								end
							end
						end
					end)