phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './000150/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 ('aa4afafdd7664eb1b57b65938d08dd03', -1, 1481053579, 1481053579, '369fbd8b', 0, 0, 0)

Line : 172
File : sessions.php