diff --git a/hub/imports/results/insel_monthly_energry_balance.py b/hub/imports/results/insel_monthly_energry_balance.py
index 1215ab46..34aab2ec 100644
--- a/hub/imports/results/insel_monthly_energry_balance.py
+++ b/hub/imports/results/insel_monthly_energry_balance.py
@@ -4,7 +4,7 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Concordia CERC group
 Project Coder Guillermo.GutierrezMorote@concordia.ca
 """
-
+import logging
 from pathlib import Path
 import csv
 
@@ -43,53 +43,61 @@ class InselMonthlyEnergyBalance:
       domestic_hot_water_demand = []
       lighting_demand = []
       appliances_demand = []
-      if building.internal_zones[0].thermal_zones_from_internal_zones is None:
+
+      # todo: REFACTOR after retrofit project, this is a hack for the pickle files
+      try:
+        if building.internal_zones[0].thermal_zones_from_internal_zones is None:
+          domestic_hot_water_demand = [0] * 12
+          lighting_demand = [0] * 12
+          appliances_demand = [0] * 12
+        else:
+          thermal_zone = building.internal_zones[0].thermal_zones_from_internal_zones[0]
+          area = thermal_zone.total_floor_area
+          cold_water = building.cold_water_temperature[cte.MONTH]
+          peak_flow = thermal_zone.domestic_hot_water.peak_flow
+          service_temperature = thermal_zone.domestic_hot_water.service_temperature
+          lighting_density = thermal_zone.lighting.density
+          appliances_density = thermal_zone.appliances.density
+
+          for month in range(0, 12):
+            total_dhw_demand = 0
+            total_lighting = 0
+            total_appliances = 0
+
+            for schedule in thermal_zone.lighting.schedules:
+              total_day = 0
+              for value in schedule.values:
+                total_day += value
+              for day_type in schedule.day_types:
+                total_lighting += total_day * cte.WEEK_DAYS_A_MONTH[day_type][month] \
+                                  * lighting_density / cte.WATTS_HOUR_TO_JULES
+            lighting_demand.append(total_lighting * area)
+
+            for schedule in thermal_zone.appliances.schedules:
+              total_day = 0
+              for value in schedule.values:
+                total_day += value
+              for day_type in schedule.day_types:
+                total_appliances += total_day * cte.WEEK_DAYS_A_MONTH[day_type][month] \
+                                    * appliances_density / cte.WATTS_HOUR_TO_JULES
+            appliances_demand.append(total_appliances * area)
+
+            for schedule in thermal_zone.domestic_hot_water.schedules:
+              total_day = 0
+              for value in schedule.values:
+                total_day += value
+              for day_type in schedule.day_types:
+                demand = (
+                    peak_flow * cte.WATER_DENSITY * cte.WATER_HEAT_CAPACITY
+                    * (service_temperature - cold_water[month]) / cte.WATTS_HOUR_TO_JULES
+                )
+                total_dhw_demand += total_day * cte.WEEK_DAYS_A_MONTH[day_type][month] * demand
+            domestic_hot_water_demand.append(total_dhw_demand * area)
+      except AttributeError:
         domestic_hot_water_demand = [0] * 12
         lighting_demand = [0] * 12
         appliances_demand = [0] * 12
-      else:
-        thermal_zone = building.internal_zones[0].thermal_zones_from_internal_zones[0]
-        area = thermal_zone.total_floor_area
-        cold_water = building.cold_water_temperature[cte.MONTH]
-        peak_flow = thermal_zone.domestic_hot_water.peak_flow
-        service_temperature = thermal_zone.domestic_hot_water.service_temperature
-        lighting_density = thermal_zone.lighting.density
-        appliances_density = thermal_zone.appliances.density
-
-        for month in range(0, 12):
-          total_dhw_demand = 0
-          total_lighting = 0
-          total_appliances = 0
-
-          for schedule in thermal_zone.lighting.schedules:
-            total_day = 0
-            for value in schedule.values:
-              total_day += value
-            for day_type in schedule.day_types:
-              total_lighting += total_day * cte.WEEK_DAYS_A_MONTH[day_type][month] \
-                                * lighting_density / cte.WATTS_HOUR_TO_JULES
-          lighting_demand.append(total_lighting * area)
-
-          for schedule in thermal_zone.appliances.schedules:
-            total_day = 0
-            for value in schedule.values:
-              total_day += value
-            for day_type in schedule.day_types:
-              total_appliances += total_day * cte.WEEK_DAYS_A_MONTH[day_type][month] \
-                                  * appliances_density / cte.WATTS_HOUR_TO_JULES
-          appliances_demand.append(total_appliances * area)
-
-          for schedule in thermal_zone.domestic_hot_water.schedules:
-            total_day = 0
-            for value in schedule.values:
-              total_day += value
-            for day_type in schedule.day_types:
-              demand = (
-                  peak_flow * cte.WATER_DENSITY * cte.WATER_HEAT_CAPACITY
-                  * (service_temperature - cold_water[month]) / cte.WATTS_HOUR_TO_JULES
-              )
-              total_dhw_demand += total_day * cte.WEEK_DAYS_A_MONTH[day_type][month] * demand
-          domestic_hot_water_demand.append(total_dhw_demand * area)
+        logging.warning('Building internal zone raised an error, most likely the building has missing archetypes')
 
       building.domestic_hot_water_heat_demand[cte.MONTH] = domestic_hot_water_demand
       building.domestic_hot_water_heat_demand[cte.YEAR] = [sum(domestic_hot_water_demand)]