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 ('5738e9eea30e3c0e3e2842a0b6c81421', -1, 1713274491, 1713274491, '038df4c9', -8, 0, 0)

Line : 187
File : sessions.php