phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './judgement4/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 ('ec61b94c81ddabf3f9039abd2038d73c', -1, 1768651639, 1768651639, 'd849d80f', -2, 0, 0)

Line : 187
File : sessions.php