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 ('abf6955d70d6a1cd4b3ee00b39977919', -1, 1714044572, 1714044572, '03119659', -7, 0, 0)

Line : 187
File : sessions.php