Correct Nginx config for yii2 on OpenServer?

Question

Nginx

I'm trying to set rules for going to the admin panel, I placed the server config in frontend/web/. In openserver there is also the root folder of the frontend/web/ domain, after that openserver simply stopped starting, there are no errors in the logs, the nginx module simply does not start. Please tell me what is wrong. here is the config for the site

server {
    listen         %ip%:%httpport%;
    listen         %ip%:%httpsport% ssl;
    server_name    %host% %aliases%;
    
    ssl_certificate               "%sprogdir%/userdata/config/cert_files/server.crt";
    ssl_certificate_key           "%sprogdir%/userdata/config/cert_files/server.key";

    location ^~ /admin {
        rewrite ^/admin(.*)$ /backend/web$1 last;
    }

    location ^~ /backend/web {
        root "%sprogdir%/domains/mysite.test/";

        index      index.php;

        # uncomment the following, if you want to enable speaking URL in the backend
        try_files $uri $uri/ /backend/web/index.php$is_args$args;

        location ~ /\.(ht|svn|git) {
            deny all;
        }

        location ~ \.php$ {
            root "%sprogdir%/domains/mysite.test/";
            try_files                          $uri =404;
            # if (!-e $document_root$document_uri){return 404;}
            fastcgi_pass                       backend;
            fastcgi_index                      index.php;
            fastcgi_buffers                    4 64k;
            fastcgi_connect_timeout            1s;
            fastcgi_ignore_client_abort        off;
            fastcgi_next_upstream              timeout;
            fastcgi_read_timeout               5m;
            fastcgi_send_timeout               5m;
            fastcgi_param    CONTENT_TYPE      $content_type;
            fastcgi_param    CONTENT_LENGTH    $content_length;
            fastcgi_param    DOCUMENT_URI      $document_uri;
            fastcgi_param    DOCUMENT_ROOT     $document_root;
            fastcgi_param    GATEWAY_INTERFACE CGI/1.1;
            fastcgi_param    HTTPS             $https;
            fastcgi_param    QUERY_STRING      $query_string;
            fastcgi_param    REQUEST_METHOD    $request_method;
            fastcgi_param    REQUEST_URI       $request_uri;
            fastcgi_param    REMOTE_ADDR       $remote_addr;
            fastcgi_param    REMOTE_PORT       $remote_port;
            fastcgi_param    SERVER_ADDR       $server_addr;
            fastcgi_param    SERVER_PORT       $server_port;
            fastcgi_param    SERVER_NAME       $host;
            fastcgi_param    SERVER_PROTOCOL   $server_protocol;
            fastcgi_param    SERVER_SOFTWARE   nginx;
            fastcgi_param    SCRIPT_FILENAME   $document_root$fastcgi_script_name;
            fastcgi_param    SCRIPT_NAME       $fastcgi_script_name;
            fastcgi_param    TMP               "%sprogdir%/userdata/temp";
            fastcgi_param    TMPDIR            "%sprogdir%/userdata/temp";
            fastcgi_param    TEMP              "%sprogdir%/userdata/temp";
        }
    }

    #add_header Strict-Transport-Security "max-age=94608000";

    # if ($request_method !~* ^(GET|HEAD|POST)$ ){return 403;}
    location ~ /\. {deny all;}

    location / {
        root       "%hostdir%";
        index      index.php index.html index.htm;
        try_files $uri $uri/ /index.php$is_args$args;
    }

    location ~ ^/assets/.*\.php$ {
        deny all;
    }

    location ~ \.php$ {
        root                               "%hostdir%";
        try_files $uri $uri/ /index.php?$query_string;
        try_files                          $uri =404;
        # if (!-e $document_root$document_uri){return 404;}
        fastcgi_pass                       backend;
        fastcgi_index                      index.php;
        fastcgi_buffers                    4 64k;
        fastcgi_connect_timeout            1s;
        fastcgi_ignore_client_abort        off;
        fastcgi_next_upstream              timeout;
        fastcgi_read_timeout               5m;
        fastcgi_send_timeout               5m;
        fastcgi_param    TMP               "%sprogdir%/userdata/temp";
        fastcgi_param    TMPDIR            "%sprogdir%/userdata/temp";
        fastcgi_param    TEMP              "%sprogdir%/userdata/temp";
        fastcgi_param    CONTENT_TYPE      $content_type;
        fastcgi_param    CONTENT_LENGTH    $content_length;
        fastcgi_param    DOCUMENT_URI      $document_uri;
        fastcgi_param    DOCUMENT_ROOT     $document_root;
        fastcgi_param    GATEWAY_INTERFACE CGI/1.1;
        fastcgi_param    HTTPS             $https;
        fastcgi_param    QUERY_STRING      $query_string;
        fastcgi_param    REQUEST_METHOD    $request_method;
        fastcgi_param    REQUEST_URI       $request_uri;
        fastcgi_param    REMOTE_ADDR       $remote_addr;
        fastcgi_param    REMOTE_PORT       $remote_port;
        fastcgi_param    SERVER_ADDR       $server_addr;
        fastcgi_param    SERVER_PORT       $server_port;
        fastcgi_param    SERVER_NAME       $host;
        fastcgi_param    SERVER_PROTOCOL   $server_protocol;
        fastcgi_param    SERVER_SOFTWARE   nginx;
        fastcgi_param    SCRIPT_FILENAME   $document_root$fastcgi_script_name;
        fastcgi_param    SCRIPT_NAME       $fastcgi_script_name;
    }

    location /openserver/ {
        root    "%sprogdir%/modules/system/html";
        index    index.php;
        %allow%allow    all;
        allow    127.0.0.0/8;
        allow    ::1/128;
        allow    %ips%;
        deny     all;
        location /openserver/server-status {
            stub_status on;
        }
        location ~ ^/openserver/.*\.php$ {
            root                               "%sprogdir%/modules/system/html";
            fastcgi_pass                       backend;
            fastcgi_index                      index.php;
            fastcgi_buffers                    4 64k;
            fastcgi_connect_timeout            1s;
            fastcgi_ignore_client_abort        off;
            fastcgi_next_upstream              timeout;
            fastcgi_read_timeout               5m;
            fastcgi_send_timeout               5m;
            fastcgi_param    TMP               "%sprogdir%/userdata/temp";
            fastcgi_param    TMPDIR            "%sprogdir%/userdata/temp";
            fastcgi_param    TEMP              "%sprogdir%/userdata/temp";
            fastcgi_param    CONTENT_TYPE      $content_type;
            fastcgi_param    CONTENT_LENGTH    $content_length;
            fastcgi_param    DOCUMENT_URI      $document_uri;
            fastcgi_param    DOCUMENT_ROOT     $document_root;
            fastcgi_param    GATEWAY_INTERFACE CGI/1.1;
            fastcgi_param    HTTPS             $https;
            fastcgi_param    QUERY_STRING      $query_string;
            fastcgi_param    REQUEST_METHOD    $request_method;
            fastcgi_param    REQUEST_URI       $request_uri;
            fastcgi_param    REMOTE_ADDR       $remote_addr;
            fastcgi_param    REMOTE_PORT       $remote_port;
            fastcgi_param    SERVER_ADDR       $server_addr;
            fastcgi_param    SERVER_PORT       $server_port;
            fastcgi_param    SERVER_NAME       $host;
            fastcgi_param    SERVER_PROTOCOL   $server_protocol;
            fastcgi_param    SERVER_SOFTWARE   nginx;
            fastcgi_param    SCRIPT_FILENAME   $document_root$fastcgi_script_name;
            fastcgi_param    SCRIPT_NAME       $fastcgi_script_name;
        }
    }
}