phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './kidnem998/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 ('9117e4c71312ef4e71f0355d4d2bf95b', -1, 1469356554, 1469356554, '6b161810', -1, 0, 0)

Line : 187
File : sessions.php