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 ('13a50e3a3594c7fb6ba9ca5ce36d2b23', -1, 1715308259, 1715308259, '12e3667c', -6, 0, 0)

Line : 189
File : sessions.php