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 ('bb26fca36d3c28f3eae27a5e5612e63a', -1, 1713867057, 1713867057, '12778348', -2, 0, 0)

Line : 172
File : sessions.php