Fix crash when user was logged in but there was no internet connection on boot

cura/OAuth2/AuthorizationHelpers.py

@@ -85,7 +85,7 @@ class AuthorizationHelpers:
             token_request = requests.get("{}/check-token".format(self._settings.OAUTH_SERVER_URL), headers = {
                 "Authorization": "Bearer {}".format(access_token)
             })
-        except ConnectionError:
+        except requests.exceptions.ConnectionError:
             # Connection was suddenly dropped. Nothing we can do about that.
             Logger.logException("e", "Something failed while attempting to parse the JWT token")
             return None

cura/OAuth2/AuthorizationService.py

@@ -4,6 +4,8 @@ import json
 import webbrowser
 from typing import Optional, TYPE_CHECKING
 from urllib.parse import urlencode
+import requests.exceptions
+
 
 from UM.Logger import Logger
 from UM.Signal import Signal
@@ -51,7 +53,11 @@ class AuthorizationService:
     def getUserProfile(self) -> Optional["UserProfile"]:
         if not self._user_profile:
             # If no user profile was stored locally, we try to get it from JWT.
+            try:
                 self._user_profile = self._parseJWT()
+            except requests.exceptions.ConnectionError:
+                # Unable to get connection, can't login.
+                return None
 
         if not self._user_profile and self._auth_data:
             # If there is still no user profile from the JWT, we have to log in again.