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 ('906d497e0515a25a1ee43e88816a4213', -1, 1714646784, 1714646784, '03951af6', 15, 0)

Line : 158
File : sessions.php