Im getting this error when trying to backup my HEM. Not sure if it's backed up correctly, or stop in the middle?HEM file is saved.

[8/8/2011 7:03 PM] HOLDEMMANAGER: error: pg_dump: SQL command failed
pg_dump: Error message from server: ERROR: invalid page header in block 15040 of relation "playerhandscashkeycolumns"
pg_dump: The command was: COPY public.playerhandscashkeycolumns (pokerhand_id, playerhand_id, handtimestamp, gametype_id, player_id, numberofplayers, positiontype_id, holecard1int, holecard2int, holecardvalue_id, rakeamount, netamountwon, streetwentallin, didvpip, didpfr, preflopaction_id, firstpreflopactiontype_id, maxstreetseen, totalflopbets, totalflopcalls, totalturnbets, totalturncalls, totalriverbets, totalrivercalls, preflopplayeractiontype_id, flopcbetpossible, flopcbetmade, flopfacingcbet, flopfoldedtocbet, flopplayeractiontype_id, turncbetpossible, turncbetmade, turnfacingcbet, turnfoldedtocbet, turnplayeractiontype_id, rivercbetpossible, rivercbetmade, riverfacingcbet, riverfoldedtocbet, riverplayeractiontype_id, holecard3int, holecard4int) TO stdout;

[8/8/2011 7:03 PM] error: error backup up HOLDEMMANAGER