How to hide [warn] Nginx PHP fpm warnings on Linux

So I get these warnings like butffering and other stuff in /var/log/nginx/php-fpm.error.log file. Here is some sample

2024/12/12 11:45:17 [warn] 486#486: *6101 a client request body is buffered to a temporary file /var/lib/nginx/tmp/client_body/0000000062, client: 10.7.12.1, server: www.example.com, request: "POST /forms/cs-route-post.php HTTP/1.1", host: "www.example.com", referrer: "https://www.example.com/"

I just need to log actual errors. Is there anyway to stop this madness and hide those warnings?