Error running scheduler trying to restore backup

[ivan quintero]

When I run the scheduler I get the following error.

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Urchin 5.6.00r2 (fedora1) starting: 20110619 04:00:11

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Processing profile: xxx.com

WARNING: (7050-323-318) Starting automatic rollback

Restoring database files for 201106 from /usr/local/urchin5/data/reports/xxx.com/201106-backup-20110617040236.zip

/usr/local/urchin5/data/reports/xxx.com/201106-pdata.und:  write error (disk full?).  Continue? (y/n/^C) 

warning:  /usr/local/urchin5/data/reports/xxx.com/201106-pdata.und is probably truncated

ERROR: (7051-323-385) Zipping or unzipping databases failed

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Some facts:

• The file 201106-backup-20110617040236.zip does not exist.
• There are about 3GB left of space on the volume.
• I deleted the 201106-pdata.und  file.
• The problem started happening when the server was restarted to perform a RAM upgrade.

Thank  in advance for your help.

[ivan quintero]

Just wanted to add a couple of more facts/info:

• There are not lock files in the reporting directory.