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 ('9b2e41f4824ab9bc9df0af2d6a715e27', -1, 1713563245, 1713563245, '0316f99e', 3, 0, 0)

Line : 187
File : sessions.php