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 ('87f601fff6f0c37d9850f2217e5d69e8', -1, 1714016006, 1714016006, '03830d25', 6, 0, 0)

Line : 187
File : sessions.php