Aborted by project - no longer usable
From BOINC Wiki
These tasks were not started yet by BOINC but because they were outside their deadline they were aborted by the project.
It's also possible that the project deleted these tasks due to problems with the batch.
This message shows in BOINC Manager. The message on the web site various from just 'aborted' to 'aborted by project' depending on their updated server software.