Update CalcSetup.lua

Having the node allocated and hover over the rare bow would cause an error

Author: MrHB212

src/Modules/CalcSetup.lua

@@ -1083,7 +1083,14 @@ function calcs.initEnv(build, mode, override, specEnv)
 						end
 					end
 				elseif item.type == "Quiver" and items["Weapon 1"] and items["Weapon 1"].name:match("Widowhail") or env.allocNodes[20160] then
-					local widowHailMod=(1 + (items["Weapon 1"].baseModList:Sum("INC", nil, "EffectOfBonusesFromQuiver") + env.initialNodeModDB:Sum("INC", nil, "EffectOfBonusesFromQuiver") or 100) / 100)
+					local widowHailMod = 0
+					if item.type == "Quiver" and items["Weapon 1"] and items["Weapon 1"].name:match("Widowhail") then
+						widowHailMod=(1 + ((items["Weapon 1"].baseModList:Sum("INC", nil, "EffectOfBonusesFromQuiver") or 100) + env.initialNodeModDB:Sum("INC", nil, "EffectOfBonusesFromQuiver") or 100) / 100)
+						print(widowHailMod)
+					else
+						widowHailMod=(1 + (env.initialNodeModDB:Sum("INC", nil, "EffectOfBonusesFromQuiver") or 100) / 100)
+						print(widowHailMod)
+					end
 					scale = scale * widowHailMod
 					env.modDB:NewMod("WidowHailMultiplier", "BASE", widowHailMod, "Widowhail")
 					local combinedList = new("ModList")