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 ('c6807665d711b0e08a3ff6a6bdda4e2a', -1, 1462123429, 1462123429, '36dd1a71', -1, 0, 0)

Line : 187
File : sessions.php