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 ('4ff5b4feb80e9d30df6e4ec88b519703', -1, 1714632843, 1714632843, '12be9cd4', -11, 0)

Line : 158
File : sessions.php