phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './mydvded_phpbb1/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, is_robot, session_admin, session_lang) VALUES ('bbcbe4e2adce62c9b61de87ac90184ab', -1, 1418869074, 1418869074, '17163bfc', -13, 0, '0', 0, 'english')

Line : 207
File : sessions.php