diff --git a/coordinator/ProcessorSurveysWRT.py b/coordinator/ProcessorSurveysWRT.py
index 62b86da18ec3172b5fdad475f3d12fbe39be7340..f3a6d6acef728e5b142353b1c7c05e0cd80c5227 100644
--- a/coordinator/ProcessorSurveysWRT.py
+++ b/coordinator/ProcessorSurveysWRT.py
@@ -114,7 +114,6 @@ def nested_to_flattened(df):
             'live_stemrust_samples_count',
             'dead_yellowrust_samples_count',
             'SET-OF-live_leafrust_samples',
-            'KEY',
             'other_diseases_group-other_diseases',
             'survey_infromation-location-Altitude',
             'SET-OF-dead_stemrust_samples',
@@ -234,7 +233,11 @@ def get_WRT_form_as_csv(form_credentials: dict, jobPath: str, config: dict, stat
         logger.debug('Saving raw csv file')
 
         df_raw_filename = f"{output_path}/{csv_filename}"
-        dataframe_raw = json_normalize(request.json()["listObservation"])
+        # if request is not empty, than convert it to a normalized dataframe, otherwise create an empty dataframe
+        if request.status_code == 200:
+            dataframe_raw = json_normalize(request.json()["listObservation"])
+        if request.status_code == 204:
+            dataframe_raw = json_normalize([])
 
         dataframe_raw.to_csv(df_raw_filename,index=False,quoting=csv.QUOTE_MINIMAL)