fix mqtt chargepoint (openWB#2354)

Author: LKuemmel

packages/helpermodules/subdata.py

@@ -443,7 +443,8 @@ def process_chargepoint_topic(self, var: Dict[str, chargepoint.Chargepoint], msg
                                 Pub().pub(f'openWB/set/vehicle/{var["cp"+index].chargepoint.data.set.charging_ev}'
                                           '/get/force_soc_update', True)
                             self.set_json_payload_class(var["cp"+index].chargepoint.data.get, msg)
-                        elif re.search("/chargepoint/[0-9]+/get/error_timestamp$", msg.topic) is not None:
+                        elif (re.search("/chargepoint/[0-9]+/get/error_timestamp$", msg.topic) is not None and
+                              hasattr(var[f"cp{index}"].chargepoint.chargepoint_module, "client_error_context")):
                             var["cp" +
                                 index].chargepoint.chargepoint_module.client_error_context.error_timestamp = (
                                 decode_payload(msg.payload)

packages/modules/common/abstract_chargepoint.py

@@ -6,7 +6,7 @@
 
 class AbstractChargepoint:
     @abstractmethod
-    def __init__(self, id: int, connection_module: dict, power_module: dict) -> None:
+    def __init__(self, config) -> None:
         pass
 
     @abstractmethod