phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './cnas_portal_2/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f22c2ada4c9658d184c9059e0b1bb26a', -1, 1406239789, 1406239789, '36f27047', 11, 0, 0)

Line : 187
File : sessions.php