diff --git a/rowers/dataprepnodjango.py b/rowers/dataprepnodjango.py
index bdd1f162..ab1f8506 100644
--- a/rowers/dataprepnodjango.py
+++ b/rowers/dataprepnodjango.py
@@ -726,7 +726,10 @@ def getsmallrowdata_db(columns,ids=[],debug=False):
         except ValueError:
             df = pd.DataFrame()
     else:
-        df = pd.read_parquet(csvfilenames[0],columns=columns,engine='pyarrow')
+        try:
+            df = pd.read_parquet(csvfilenames[0],columns=columns,engine='pyarrow')
+        except (OSError,IndexError):
+            pass
 
 
     return df
@@ -1257,7 +1260,7 @@ def dataprep(rowdatadf,id=0,bands=True,barchart=True,otwpower=True,
         data.fillna(0,inplace=True)
         for k, v in dtypes.items():
             try:
-                data[k] = data[k].astype(v) 
+                data[k] = data[k].astype(v)
             except KeyError:
                 pass