PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'mysite.og' doesn't exist

I am using og 7.2.x and the og table is in my database.

PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'mysite.og' doesn't exist: SELECT n.created FROM {og} og INNER JOIN {node} n ON og.gid = n.nid WHERE n.created >= :period ORDER BY n.created DESC ; Array ( [:period] => 1348959479 ) in Quant->execute_query() (line 110 of quant/plugins/Quant.inc).