Something

Resuming par recovery download: Xbox_Live_Arcade_Unplugged_PROPER_NTSC_XBOX360-CLEAR
Parsing: Xbox_Live_Arcade_Unplugged_PROPER_NTSC_XBOX360-CLEAR.nzb...
Queued par2: clr-xlau.vol050+38.PAR2 (97MB, 38 blocks)
Skipping pars.. (Skipped par2: clr-xlau.vol088+38.PAR2 (97MB))
Parsed: 89 files (32281 posts), 7675.9MB
Skipped (on disk): 83 files and 6 segments, 7090.3MB
Skipped pars: 5 files, 489.2MB (actual skipped: 488.0MB)
 clr-xlau.vol088+38.PAR2 ->
 clr-xlau.vol240+38.PAR2 (190 blocks)
Queued: 97.6MB (recovering 38 blocks)
Transferred 100.8MB in 52s at 1955.5KB/s (Xbox_Live_Arcade_Unplugged_PROPER_NTSC_XBOX360-CLEAR)
[-] Unhandled Error
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/Hellanzb/Daemon.py", line 114, in initDaemon
    startNZBLeecher()
  File "/usr/lib/python2.4/site-packages/Hellanzb/NZBLeecher/__init__.py", line 231, in startNZBLeecher
    reactor.run()
  File "/usr/lib/python2.4/site-packages/twisted/internet/posixbase.py", line 220, in run
    self.mainLoop()
  File "/usr/lib/python2.4/site-packages/twisted/internet/posixbase.py", line 228, in mainLoop
    self.runUntilCurrent()
--- <exception caught here> ---
  File "/usr/lib/python2.4/site-packages/twisted/internet/base.py", line 533, in runUntilCurrent
    f(*a, **kw)
  File "/usr/lib/python2.4/site-packages/Hellanzb/Daemon.py", line 354, in handleNZBDone
    nzb.downloadTime += downloadTime
exceptions.TypeError: unsupported operand type(s) for +=: 'NoneType' and 'int'