phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4d89f790408ab1f3f91a439178db95a0', -1, 1715005398, 1715005398, '0d3a7983', -4, 0, 0)

Line : 189
File : sessions.php