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 ('e0c2a65d2b4c4c7a9159483d33b1c695', -1, 1425342663, 1425342663, 'adf53845', -9, 0)

Line : 158
File : sessions.php