phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9aca635ed8ff43eed65c368e727f5096' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9aca635ed8ff43eed65c368e727f5096', -1, 1756755930, 1756755930, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php