Use ValueError isntead of JsonDecodeError. (#72)

Author: Kevin Hellemun

bunq/sdk/client.py

@@ -1,5 +1,4 @@
 import uuid
-from json import JSONDecodeError
 from urllib.parse import urlencode
 
 import requests
@@ -251,7 +250,7 @@ def _fetch_all_error_message(self, response):
             error_dict = converter.json_to_class(dict, response_content_string)
 
             return self._fetch_error_descriptions(error_dict)
-        except JSONDecodeError:
+        except ValueError:
             return [response_content_string]
 
     def _fetch_error_descriptions(self, error_dict):