Nginx Need urgent nginx config help

I'm trying to implement memberpress (membership plugin for wordpress) for one of our wp sites on centminmod server.

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From our tests it works fine on apache server but does not want to work on centminmod nginx. We narrowed down the problem to nginx conf rewrite rules.

From this page: Rewrite Rules developers asking to edit nginx config.

We tried it - it does not work. Forms do not redirect to a thank you page. Instead of 302 response we are getting 200 and form just refreshes.

So the problem is in these lines of nginx config:

Code:

 # Wordpress Permalinks
try_files $uri $uri/ /index.php?q=$uri&$args;

 
  root   /home/nginx/domains/ourdomain.com/public;
    index  index.php;

    # Make sure the home page goes home
    if ($uri ~ ^\/$) {
      rewrite ^ /index.php?$args last;
    }

    # Main WordPress rewrite rule
    if (!-e $request_filename) {
     rewrite ^ /index.php?$args last;
    }

    # Setup lock variables
    set $mplk_uri "/wp-content/plugins/memberpress/lock.php";
    set $mplk_file "/home/nginx/domains/ourdomain.com/public/wp-content/uploads/mepr/rules/${cookie_mplk}";
   
    # don't lock the lock uri
    if ($uri ~* "^/(wp-admin|wp-includes)") { break; }
    if ($uri ~* "\.(php|phtml|jpg|jpeg|gif|css|png|js|ico|svg|woff|ttf|xml)") { break; }
   
    # we don't deal with directories in the url
    if (-d $request_filename) { break; }
   
    # redirect if the lock file's a dir or doesn't exist
    if (-d $mplk_file) { rewrite ^ $mplk_uri last; }
    if (!-e $mplk_file) { rewrite ^ $mplk_uri last; }

If someone can help us fix this I would be eternally grateful.

Thank you.

 

anyone, please?