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 ('2d2cc4702a905d76b1deb30e2aebf0bc', -1, 1715218025, 1715218025, '12bc46ff', -9, 0, 0)

Line : 189
File : sessions.php