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) VALUES ('ff0b4fec6e7e1fa5b85dc4f86dab06e6', -1, 1714525191, 1714525191, '0387b7bb', -9, 0)

Line : 158
File : sessions.php