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 ('0f5fa10ccbb7a0a5e1f08611dc3e66ff', -1, 1429341286, 1429341286, '36a7abba', -1, 0, 0)

Line : 187
File : sessions.php