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 ('08926e6fb76f6a2ae0585d277ed6b481', -1, 1713868710, 1713868710, '12759926', -10, 0, 0)

Line : 187
File : sessions.php