Changed the config but still doesn’t work [Converter for Media

Can you tell me in detail how to modify these codes to my configuration? My server is Nginx

Follow the 4 steps below (please do all of them):
Step 1

Find the configuration file in one of the paths (remember to select configuration file used by your vhost):
– /etc/nginx/sites-available/ or /etc/nginx/sites-enabled/
– /etc/nginx/conf.d/

and add this code (add these lines at the beginning of the server { … } block) – remember to add these rules before any other location {} rules:

BEGIN Converter for Media

set $ext_avif ".avif";
if ($http_accept !~* "image/avif") {
set $ext_avif "";
}

set $ext_webp ".webp";
if ($http_accept !~* "image/webp") {
set $ext_webp "";
}

location ~ /wp-content/(?.+).(?jpe?g|png|gif|webp)$ {
add_header Vary Accept;
expires 365d;
try_files
/wp-content/uploads-webpc/$path.$ext$ext_avif
/wp-content/uploads-webpc/$path.$ext$ext_webp
$uri =404;
}

END Converter for Media

Step 2

Then add support for the required MIME types, if they are not supported. Edit the configuration file:
– /etc/nginx/mime.types

and add this code (add these lines inside the types { … } block):

image/webp webp;
image/avif avif;

下面的是我的Nginx配置文件：

user  www www;
worker_processes auto;
error_log  /www/wwwlogs/nginx_error.log  crit;
pid        /www/server/nginx/logs/nginx.pid;
worker_rlimit_nofile 51200;

stream {
    log_format tcp_format '$time_local|$remote_addr|$protocol|$status|$bytes_sent|$bytes_received|$session_time|$upstream_addr|$upstream_bytes_sent|$upstream_bytes_received|$upstream_connect_time';
  
    access_log /www/wwwlogs/tcp-access.log tcp_format;
    error_log /www/wwwlogs/tcp-error.log;
    include /www/server/panel/vhost/nginx/tcp/*.conf;
}

events
    {
        use epoll;
        worker_connections 51200;
        multi_accept on;
    }

http
    {
        include       mime.types;
		#include luawaf.conf;

		include proxy.conf;

        default_type  application/octet-stream;

        server_names_hash_bucket_size 512;
        client_header_buffer_size 32k;
        large_client_header_buffers 4 32k;
        client_max_body_size 50m;

        sendfile   on;
        tcp_nopush on;

        keepalive_timeout 60;

        tcp_nodelay on;

        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
        fastcgi_buffer_size 64k;
        fastcgi_buffers 4 64k;
        fastcgi_busy_buffers_size 128k;
        fastcgi_temp_file_write_size 256k;
		fastcgi_intercept_errors on;

        gzip on;
        gzip_min_length  1k;
        gzip_buffers     4 16k;
        gzip_http_version 1.1;
        gzip_comp_level 2;
        gzip_types     text/plain application/javascript application/x-javascript text/javascript text/css application/xml;
        gzip_vary on;
        gzip_proxied   expired no-cache no-store private auth;
        gzip_disable   "MSIE [1-6]\.";

        limit_conn_zone $binary_remote_addr zone=perip:10m;
		limit_conn_zone $server_name zone=perserver:10m;

        server_tokens off;
        access_log off;

server
    {
        listen 888;
        server_name phpmyadmin;
        index index.html index.htm index.php;
        root  /www/server/phpmyadmin;
            location ~ /tmp/ {
                return 403;
            }

        #error_page   404   /404.html;
        include enable-php.conf;
    # BEGIN Converter for Media
set $ext_avif ".avif";
if ($http_accept !~* "image/avif") {
    set $ext_avif "";
}

set $ext_webp ".webp";
if ($http_accept !~* "image/webp") {
    set $ext_webp "";
}

location ~ /wp-content/(?<path>.+)\.(?<ext>jpe?g|png|gif|webp)$ {
    add_header Vary Accept;
    expires 365d;
    try_files
        /wp-content/uploads-webpc/$path.$ext$ext_avif
        /wp-content/uploads-webpc/$path.$ext$ext_webp
        $uri =404;
}
# END Converter for Media
        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;
        }

        location ~ .*\.(js|css)?$
        {
            expires      12h;
        }

        location ~ /\.
        {
            deny all;
        }

        access_log  /www/wwwlogs/access.log;
    }
include /www/server/panel/vhost/nginx/*.conf;
}

我不会传图片，所以请见谅