Deluge Forum

I used deluge 0.5.8.3 under Ubuntu gusty amd64, normally it ran ok. But now it crashed when startomg with the following error:

Applying preferences
Starting DHT...
Traceback (most recent call last):
File "/usr/bin/deluge", line 145, in <module>
start_deluge()
File "/usr/bin/deluge", line 128, in start_deluge
interface = deluge.interface.DelugeGTK()
File "/var/lib/python-support/python2.5/deluge/interface.py", line 108, in __init__
self.apply_prefs()
File "/var/lib/python-support/python2.5/deluge/interface.py", line 921, in apply_prefs
self.manager.apply_prefs()
File "/var/lib/python-support/python2.5/deluge/core.py", line 1110, in apply_prefs
self.prioritize_files(unique_ID, self.get_priorities(unique_ID))
File "/var/lib/python-support/python2.5/deluge/core.py", line 770, in prioritize_files
self.get_core_torrent_state(unique_ID)['num_files'])
AssertionError

This had happened a few days ago. And I had delete files under deludge to make it start again.
This time there was no disk-full or other noticable system crash. It seems that deluge torrent state files are vulnerable.