[G] Environment - Fatal Error

GE.Mysql Error - Query execution fail. Message: Table './www_boardonline/GDE_App_Web_Users_Auth' is marked as crashed and should be repaired
Query: "SELECT
ID,
Is_Logged_In
FROM
GDE_App_Web_Users_Auth
WHERE
(Session_ID = 'adcclvjdnvbnoahub749lhjsh1')
AND ((UNIX_TIMESTAMP() - UNIX_TIMESTAMP(Last_Access_Date)) < 7200)
LIMIT 1;".