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 ('747e4dc90c9af9c03c9b69e4ee0f473b', -1, 1715008762, 1715008762, '038e77f1', -10, 0, 0)

Line : 189
File : sessions.php