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 ('fe71e4348f7f1dff2e7c604ad67f1af5', -1, 1713954293, 1713954293, '038d1ea2', -4, 0, 0)

Line : 187
File : sessions.php