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 ('2040a2e426ef6bc273bffdfe0d95905d', -1, 1464379355, 1464379355, '3650e7aa', -1, 0, 0)

Line : 187
File : sessions.php