phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './why9work_phpbb1/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) VALUES ('6d6150cbe4b9318d1d07747731539ec9', -1, 1422824908, 1422824908, 'adf53638', 13, 0)

Line : 158
File : sessions.php