diff --git a/packages/modules/common/store/_counter.py b/packages/modules/common/store/_counter.py
index a66430b247..06254e4dac 100644
--- a/packages/modules/common/store/_counter.py
+++ b/packages/modules/common/store/_counter.py
@@ -93,11 +93,16 @@ def add_exported(element):
             for element in elements:
                 if element["type"] == ComponentType.CHARGEPOINT.value:
                     chargepoint = data.data.cp_data[f"cp{element['id']}"]
-                    self.currents = list(map(add,
-                                             self.currents,
-                                             convert_cp_currents_to_evu_currents(
-                                                 chargepoint.data.config.phase_1,
-                                                 chargepoint.data.get.currents)))
+                    try:
+                        self.currents = list(map(add,
+                                                 self.currents,
+                                                 convert_cp_currents_to_evu_currents(
+                                                     chargepoint.data.config.phase_1,
+                                                     chargepoint.data.get.currents)))
+                    except KeyError:
+                        raise KeyError("Für den virtuellen Zähler muss der Anschluss der Phasen von Ladepunkt"
+                                       f" {chargepoint.data.config.name} an die Phasen des EVU Zählers "
+                                       "angegeben werden.")
                     self.power += chargepoint.data.get.power
                     self.imported += chargepoint.data.get.imported
                 elif element["type"] == ComponentType.BAT.value: