phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f01cf81de6c5ce9e61dded2bde4b5ff5', -1, 1714180710, 1714180710, '12bd1688', -11, 0, 0)

Line : 187
File : sessions.php