Изменить 'openresty.conf'

openresty.conf

@@ -42,9 +42,6 @@ http {
         include	https.conf;
         include	octobercms.conf;
         include	staticfiles.conf;
-        location ~ ^/backend {
-        	client_max_body_size 10M;
-        }
         location ~ ^/(index|t).php {
             fastcgi_pass fpm;
             include fastcgi_params;