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 ('7ddf4fd796d07a1f3b8be58dfc9d885b', -1, 1713535350, 1713535350, '12759926', -8, 0, 0)

Line : 187
File : sessions.php