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 ('c6bcebe9a7fad072cb162a572a4163fa', -1, 1713102250, 1713102250, '03ebac7b', -7, 0, 0)

Line : 187
File : sessions.php