phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './assetanalysiscom/phpbb_sessions' is marked as crashed and last (automatic?) repair failed

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1d295ee1bb24ed121db7cb393460c598', -1, 1409351656, 1409351656, 'b8488d1f', -4, 0, 0)

Line : 187
File : sessions.php