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 ('4e71b723e7e2e41aaa5cc52dc8aaf537', -1, 1714331958, 1714331958, '0381f7c4', -8, 0)

Line : 158
File : sessions.php