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 ('9b49b63058a60f45d9ac5873bc8cb5ef', -1, 1715213568, 1715213568, '0389a26e', -2, 0, 0)

Line : 189
File : sessions.php