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 ('cc5c4e219547f95b3a6e9e1e8bf9025c', -1, 1713498241, 1713498241, '12bf9dba', -10, 0, 0)

Line : 187
File : sessions.php