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 ('30c45e448121cb8c0d3a919deb9d72be', -1, 1713933568, 1713933568, '038a71bc', 3, 0, 0)

Line : 187
File : sessions.php