bug fixes

rowers/views/statements.py

@@ -731,6 +731,10 @@ def get_stored_tasks_status(request):
         progress = 0
         try:
             cached_progress = cache.get(id)
+            if cached_progress is not None:
+                cached_progress = int(cached_progress)
+            else:
+                cached_progress = 0
         except ValueError:
             cached_progress = 0
         finished = get_job_status(id)['finished']