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 ('f11699f5cc8505f80152b5e5b5de1692', -1, 1714123722, 1714123722, '0395d5d1', -10, 0, 0)

Line : 187
File : sessions.php