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 ('79e5323ae54420d67d47db65b53f25f5', -1, 1411432152, 1411432152, '36579c1d', -4, 0, 0)

Line : 187
File : sessions.php