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 ('3983f097da0809a06375ea104b6e1aca', -1, 1715129678, 1715129678, '12be9826', 0, 0, 0)

Line : 189
File : sessions.php