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 ('38ef60ed6d2b1ac6b3ee7afae2c7b82a', -1, 1474860868, 1474860868, 'adf53451', -9, 0)

Line : 158
File : sessions.php