diff --git a/web/run.py b/web/run.py
index 33c9cd7..dbb512b 100755
--- a/web/run.py
+++ b/web/run.py
@@ -916,7 +916,10 @@ def generate_csv_contents_spz(target_slug, input_slug, started_at, stopped_at):
     list_df = []
     for _name, _id in parameters_dict.items():
         hp_logger.debug(f"Getting parameter id '{_id}' for '{_name}'")
-        _df = amda.get_data(_id, started_at, stopped_at).to_dataframe()
+        amda_dataset = amda.get_data(_id, started_at, stopped_at)
+        if amda_dataset is None:
+            continue
+        _df = amda_dataset.to_dataframe()
         if _name == 'xy_v':
             _df = _df.rename(columns={_df.columns[0]: 'vrad', _df.columns[1]: 'vtan'})
         elif _name == 'xy_hee':
--
libgit2 0.21.2