diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index dff4237d..3874fa3f 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -72,6 +72,7 @@ import pandas as pd
 import numpy as np
 import itertools
 from fitparse import FitFile
+from fitparse.base import FitHeaderError
 import math
 from rowers.tasks import (
     handle_sendemail_unrecognized, handle_sendemail_breakthrough,
@@ -1586,7 +1587,11 @@ def handle_nonpainsled(f2, fileformat, summary=''):
 # Currently there is code duplication
 
 def get_workouttype_from_fit(filename,workouttype='water'):
-    fitfile = FitFile(filename,check_crc=False)
+    try:
+        fitfile = FitFile(filename,check_crc=False)
+    except FitHeaderError:
+        return workouttype
+
     records = fitfile.messages
     fittype = 'rowing'
     for record in records:
diff --git a/rowers/tasks.py b/rowers/tasks.py
index c940c3ff..21165f54 100644
--- a/rowers/tasks.py
+++ b/rowers/tasks.py
@@ -2744,8 +2744,8 @@ def fetch_strava_workout(stravatoken,oauth_data,stravaid,csvfilename,userid,debu
     url = "https://www.strava.com/api/v3/activities/"+str(stravaid)
     response = requests.get(url,headers=headers)
     if response.status_code != 200:
-        t = time.localtime()
-        timestamp = time.strftime('%b-%d-%Y_%H%M', t)
+        tstamp = time.localtime()
+        timestamp = time.strftime('%b-%d-%Y_%H%M', tstamp)
         with open('strava_webhooks.log','a') as f:
             f.write('\n')
             f.write(timestamp)
@@ -2781,8 +2781,8 @@ def fetch_strava_workout(stravatoken,oauth_data,stravaid,csvfilename,userid,debu
     coords = get_strava_stream(None,'latlng',stravaid,authorizationstring=authorizationstring)
     power = get_strava_stream(None,'watts',stravaid,authorizationstring=authorizationstring)
 
-    t = time.localtime()
-    timestamp = time.strftime('%b-%d-%Y_%H%M', t)
+    tstamp = time.localtime()
+    timestamp = time.strftime('%b-%d-%Y_%H%M', tstamp)
     with open('strava_webhooks.log','a') as f:
         f.write('\n')
         f.write(timestamp)
@@ -2840,7 +2840,7 @@ def fetch_strava_workout(stravatoken,oauth_data,stravaid,csvfilename,userid,debu
 
 
 
-    strokelength = velo2*60./(spm)
+    strokelength = velo*60./(spm)
     strokelength[np.isinf(strokelength)] = 0.0