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 ('8d8890e6df2bc2bf17db1a6de09078fe', -1, 1715173818, 1715173818, '12bfd342', -1, 0, 0)

Line : 189
File : sessions.php