Discuz! Database Error

(1146) Table 'ft110.tpgao_edu_course' doesn't exist
SELECT COUNT(*) FROM tpgao_edu_course where parent IN(9)

PHP Debug

No.FileLineCode
1plugin.php47include(%s)
2source/plugin/tpgao_edu/index.inc.php133discuz_database::result_first(%s)
3source/class/discuz/discuz_database.php118discuz_database::query(%s, Array, false, false)
4source/class/discuz/discuz_database.php137db_driver_mysqli->query(%s, false, false)
5source/class/db/db_driver_mysqli.php147db_driver_mysqli->halt(%s, %d, %s)
6source/class/db/db_driver_mysqli.php222break()
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