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 ('3096281ffb2cb2a3043cc5dde3c7c85b', -1, 1440988377, 1440988377, '3653439e', 40, 0, 0)

Line : 187
File : sessions.php