Do you experience problems during downloading?
Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
We will probably ask you to do a test using only basic settings.
Do you experience problems during repair or unpacking?
Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
Due to the fact that the history item was removed, SABnzbd lost its administration on about the job.
What you can do is use program like QuickPar to verify and repair the set of files in the complete directory.
Then use WinRar to unpack it.
If your are familiar with command line use, you can use the par2.exe and unrar.exe programs that
are distributed with SABnzbd.
The next release of SAB will make it impossible to delete the history of a still running job.
(Active jobs should only be removed in the Queue page).