FIX: Only error if data is present and metadata is missing

l2json/sources/minio.py

@@ -176,9 +176,13 @@ def fetch_from_minio(
                 tqdm_desc="Parsing metadata",
             )
         ]
-        if not len(metadata):
-            raise KeyError(f"No metadata was found for {station}/{statistics_type}/{antennafield} @ {tstart} - {tend}")
     else:
         metadata = []
 
+    if fetch_metadata and not len(metadata):
+        if len(data):
+            raise KeyError(f"No metadata was found for {station}/{statistics_type}/{antennafield} @ {tstart} - {tend}")
+        else:
+            print(f"No metadata was found for {station}/{statistics_type}/{antennafield} @ {tstart} - {tend}")
+
     return metadata, data