[Common] Catch tarfile exception if no filepaths exist

deluge/common.py

@@ -173,10 +173,14 @@ def archive_files(arc_name, filepaths):
                 # TODO: Remove oldest timestamped archives.
                 log.warning('More than %s tarballs in config archive', max_num_arcs)
 
+        try:
             with tarfile.open(arc_filepath, 'w:' + arc_comp) as tf:
                 for filepath in filepaths:
                     tf.add(filepath, arcname=os.path.basename(filepath))
-
+        except OSError:
+            log.error('Problem occurred archiving filepaths: %s', filepaths)
+            return False
+        else:
             return arc_filepath