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 ('06f7fd122f4fef92f68f40d83b294b4b', -1, 1715102724, 1715102724, '12ddef94', -8, 0, 0)

Line : 189
File : sessions.php