使用 nginx 在域上缩进多个 uri 以访问本地服务器上的 apache wordpress 域

Question

I'm trying to run apache and wordpress using reverse-proxy with nginx, but i'm having problem to access some pages of my wordpress. Normally i can acceed wp-admin page but when i try to view some page, the page domain come with multiple uri, like, localhost/wordpress/index.php/contact?q=wordpress/index.php/contato/&q=wordpress/index.php/contato/&q=wordpress/index.php/contato/&... and goes far away repeating this.

I'm trying to run locally a nginx server that supports wordpress on apache because I want to pass this configuration to my vps to make another website in nodejs without needing to specify ports on domain

this is my /etc/nginx/sites-enable/default code:

server {
listen 80 default_server;
listen [::]:80 default_server;
root /var/www/html;

index index.php index.html index.htm index.nginx-debian.html;

server_name _;

location / {

    #try_files $uri $uri/ =404;
    #try_files $uri $uri/ /index.php?q=$uri&$args;
    try_files $uri $uri/ /index.php?$args;
    proxy_pass http://localhost:81;
    #proxy_pass_reverse / http://localhost:81/
    proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    #ProxyPreserveHost On;

    #rewrite /wp-admin$ $scheme://$host$uri/index.php?q=$1 permanent;
    #rewrite ^/(.*)$ $scheme://$host$uri/index.php?q=$1 permanent;
    rewrite ^/(.*)$ /index.php?$1 ;
    include /etc/nginx/proxy_params;

}

location ~* \.(js|css|jpg|jpeg|gif|png|svg|ico|pdf|html|htm)$ {
    expires 30d;
}
location @proxy {
            proxy_pass http://127.0.0.1:81;
            include /etc/nginx/proxy_params;
}
location ~* \.php$ {
            proxy_pass http://127.0.0.1:81;
    #fastcgi_pass unix:/run/php/php7.0-fpm.sock;
        #include snippets/fastcgi-php.conf;
            include /etc/nginx/proxy_params;
}   

}

I'm expecting to fix this multiple domains.