phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO cantautore_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('bc6d70714f1dd7df52256e9c6db0db17', -1, 1714080719, 1714080719, '0d3af71f', 3, 0, '0', '0')

Line : 175
File : sessions.php