diff --git a/app_decoder.py b/app_decoder.py
index 8994a69..a776322 100755
--- a/app_decoder.py
+++ b/app_decoder.py
@@ -4,7 +4,6 @@ import os
 import traceback
 from sys import argv
 import sys
-import re
 from getpass import getpass
 
 from androguard.core.bytecodes.apk import APK
@@ -25,33 +24,6 @@ BRAND = {"com.psa.mym.myopel": {"realm": "clientsB2COpel", "brand_code": "OP", "
          }
 
 
-def getxmlvalue(root, name):
-    for child in root.findall("*[@name='" + name + "']"):
-        return child.text
-
-
-def find_app_path():
-    base_dir = 'apps/'
-    paths = os.listdir(base_dir)
-    if len(paths) > 0:
-        for path in paths:
-            pattern = re.compile('com.psa.mym.\\w*')
-            print(pattern.match(path))
-            if pattern.match(path) is not None:
-                return base_dir + path
-    return None
-
-
-def find_preferences_xml():
-    paths = os.listdir()
-    if len(paths) > 0:
-        for path in paths:
-            pattern = re.compile('com.psa.mym.\\w*_preferences.xml')
-            if pattern.match(path) is not None:
-                return path
-    return None
-
-
 def save_key_to_pem(pfx_data, pfx_password):
     private_key, certificate = pkcs12.load_key_and_certificates(pfx_data,
                                                                 bytes.fromhex(pfx_password), default_backend())[:2]
diff --git a/my_psacc.py b/my_psacc.py
index d0a3149..fa38829 100644
--- a/my_psacc.py
+++ b/my_psacc.py
@@ -10,6 +10,7 @@ from time import sleep
 from oauth2_client.credentials_manager import ServiceInformation
 import paho.mqtt.client as mqtt
 from requests.exceptions import RequestException
+from urllib3.exceptions import InvalidHeader
 
 import psa_connectedcar as psac
 from libs.car import Cars, Car
@@ -143,7 +144,7 @@ class MyPSACC:
                     if self._record_enabled:
                         self.record_info(car)
                     return res
-            except ApiException as ex:
+            except (ApiException, InvalidHeader) as ex:
                 logger.error("get_vehicle_info: ApiException: %s", ex)
                 logger.debug(exc_info=True)
         car.status = res
@@ -173,7 +174,7 @@ class MyPSACC:
             for vehicle in res.embedded.vehicles:
                 self.vehicles_list.add(Car(vehicle.vin, vehicle.id, vehicle.brand, vehicle.label))
             self.vehicles_list.save_cars()
-        except ApiException:
+        except (ApiException, InvalidHeader):
             logger.exception("get_vehicles:")
         return self.vehicles_list
 
diff --git a/web/db.py b/web/db.py
index 50580ba..b65eabe 100644
--- a/web/db.py
+++ b/web/db.py
@@ -63,10 +63,6 @@ class Database:
     def convert_datetime_to_string(date: datetime):
         return date.replace(tzinfo=pytz.UTC).isoformat(timespec='seconds', sep=" ")
 
-    @staticmethod
-    def update_callback():
-        Database.callback_fct()
-
     @staticmethod
     def set_db_callback(callbackfct):
         Database.callback_fct = callbackfct