phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './nixforums_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 ('40eb73ac4e9fa7047b5fc97901b749e8', -1, 1441174864, 1441174864, '36910413', 83, 0, 0)

Line : 180
File : sessions.php