phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpbb/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 ('9da98133c3830092ccd68e37ce4a3b82', -1, 1498423764, 1498423764, '3650153d', -1, 0, 0)

Line : 187
File : sessions.php