[2.3] TATMonster Process Error

Any ideas what could cause it?

Ive checked monster db, no gaps or duplicates?

[12.10.2011 21:53:22] TATMonster process Error
[12.10.2011 21:55:45] TATMonster process Error
[12.10.2011 21:56:11] TATMonster process Error
[12.10.2011 21:58:01] TATMonster process Error
[12.10.2011 21:58:08] TATMonster process Error
[12.10.2011 21:59:40] TATMonster process Error