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 ('dc8f4d67d3d417ef7d3df5726f86e167', -1, 1714253590, 1714253590, '12db16a9', -4, 0)

Line : 158
File : sessions.php