Error on map client search

* adds info for user if address search content could not be parsed properly due to external errors

konova/views/map_proxy.py

@@ -6,6 +6,7 @@ Created on: 19.08.22
 
 """
 import json
+from json import JSONDecodeError
 
 import requests
 from django.contrib.auth.decorators import login_required
@@ -13,6 +14,8 @@ from django.http import JsonResponse, HttpRequest
 from django.utils.decorators import method_decorator
 from django.utils.http import urlencode
 from django.views import View
+from django.utils.translation import gettext_lazy as _
+
 from requests.auth import HTTPDigestAuth
 
 from konova.sub_settings.proxy_settings import PROXIES, CLIENT_PROXY_AUTH_USER, CLIENT_PROXY_AUTH_PASSWORD
@@ -57,7 +60,18 @@ class ClientProxyParcelSearch(BaseClientProxyView):
     def get(self, request: HttpRequest):
         url = request.META.get("QUERY_STRING")
         content, response_code = self.perform_url_call(url)
+        try:
             body = json.loads(content)
+        except JSONDecodeError as e:
+            body = {
+                "totalResultsCount": -1,
+                "geonames": [
+                    {
+                        "title": _("The external service is currently unavailable.<br>Please try again in a few moments...")
+                    }
+                ]
+            }
+
         if response_code != 200:
             return JsonResponse({
                 "status_code": response_code,