diff --git a/rowers/dataprepnodjango.py b/rowers/dataprepnodjango.py
index 176dd5ae..5a201551 100644
--- a/rowers/dataprepnodjango.py
+++ b/rowers/dataprepnodjango.py
@@ -16,6 +16,7 @@ from pandas import DataFrame,Series
 
 import shutil
 from shutil import copyfile
+import pyarrow as pa
 
 import pandas as pd
 import numpy as np
@@ -729,7 +730,7 @@ def getsmallrowdata_db(columns,ids=[],debug=False):
                 data.append(df)
             except OSError:
                 pass
-            except pyarrow.lib.ArrowInvalid:
+            except pa.lib.ArrowInvalid:
                 pass
 
         try:
diff --git a/rowers/tasks.py b/rowers/tasks.py
index b0d8358b..4d7ee6f5 100644
--- a/rowers/tasks.py
+++ b/rowers/tasks.py
@@ -194,6 +194,8 @@ def handle_strava_sync(stravatoken,workoutid,filename,name,activity_type,descrip
             failed = True
         except JSONDecodeError:
             failed = True
+        except stravalib.exc.ObjectNotFound:
+            failed = true
     if not failed:
         try:
             act = client.update_activity(res.id,activity_type=activity_type,