phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './bdforum/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 ('4c1ca5b6b89d3b091e63e71d450f4558', -1, 1464307939, 1464307939, '3651a3be', -1, 0, 0)

Line : 187
File : sessions.php