В чем ошибка, не работает плагин кэширования, NGINX+Wordpress?

server {
    listen      %ip%:%web_ssl_port% ssl http2;
    server_name %domain_idn% %alias_idn%;
    root        %docroot%;
    index       index.php index.html index.htm;
    access_log  /var/log/nginx/domains/%domain%.log combined;
    access_log  /var/log/nginx/domains/%domain%.bytes bytes;
    error_log   /var/log/nginx/domains/%domain%.error.log error;

    ssl         on;
    ssl_certificate      %ssl_pem%;
    ssl_certificate_key  %ssl_key%;

    # CacheEnabler Start
 set $cache_uri $request_uri;

    # bypass cache if POST requests or URLs with a query string
    if ($request_method = POST) {
        set $cache_uri 'nullcache';
    }
    if ($query_string != "") {
        set $cache_uri 'nullcache';
    }

    # bypass cache if URLs containing the following strings
    if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
        set $cache_uri 'nullcache';
    }

    # bypass cache if the cookies containing the following strings
    if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_logged_in") {
        set $cache_uri 'nullcache';
    }

    # default html file
    set $cache_enabler_uri '/wp-content/cache/cache-enabler/${http_host}${cache_uri}index.html';

    # webp html file
    if ($http_accept ~* "image/webp") {
        set $cache_enabler_uri '/wp-content/cache/cache-enabler/${http_host}${cache_uri}index-webp.html';
    }
    # CacheEnabler Stop

	
    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }

location = /robots.txt {
    try_files $uri $uri/ /index.php?$args;
    access_log off;
    log_not_found off;
    }

    location / {
    try_files $cache_enabler_uri $uri $uri/ /index.php?$args;

        if (!-e $request_filename)
        {
            rewrite ^(.+)$ /index.php?q=$1 last;
        }

        location ~* ^.+\.(jpeg|jpg|png|gif|bmp|ico|svg|css|js)$ {
            expires     max;
        }

        location ~ [^/]\.php(/|$) {
       
	    fastcgi_buffers 8 256k;
        fastcgi_buffer_size 128k;
        fastcgi_intercept_errors on;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
		
		fastcgi_cache microcache;
        fastcgi_cache_key $scheme$host$request_uri$request_method;
		fastcgi_cache_valid 200 301 302 30s;
		fastcgi_cache_use_stale updating error timeout invalid_header http_500;
		fastcgi_pass_header Set-Cookie;
		fastcgi_pass_header Cookie;
		fastcgi_ignore_headers Cache-Control Expires Set-Cookie;   

		
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            if (!-f $document_root$fastcgi_script_name) {
                return  404;
            }

            fastcgi_pass    %backend_lsnr%;
            fastcgi_index   index.php;
            include         /etc/nginx/fastcgi_params;
        }
    }
    error_page  403 /error/404.html;
    error_page  404 /error/404.html;
    error_page  500 502 503 504 /error/50x.html;

    location /error/ {
        alias   %home%/%user%/web/%domain%/document_errors/;
    }

    location ~* "/\.(htaccess|htpasswd)$" {
        deny    all;
        return  404;
    }

    location /vstats/ {
        alias   %home%/%user%/web/%domain%/stats/;
        include %home%/%user%/web/%domain%/stats/auth.conf*;
    }

    include     /etc/nginx/conf.d/phpmyadmin.inc*;
    include     /etc/nginx/conf.d/phppgadmin.inc*;
    include     /etc/nginx/conf.d/webmail.inc*;

    include     %home%/%user%/conf/web/nginx.%domain_idn%.conf*;

	
}

open_file_cache          max=10000 inactive=30s;
    open_file_cache_valid    60s;
    open_file_cache_min_uses 2;
    open_file_cache_errors   off;

    fastcgi_cache_path /var/cache/nginx/fcgi levels=1:2 keys_zone=microcache:10m max_size=1024m inactive=1h;