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 ('0c58f091a8c4dad2797f4f321a2a4a60', -1, 1713959939, 1713959939, '039177c7', 3, 0, 0)

Line : 187
File : sessions.php