update

nginx/conf.d/default.conf

@@ -3,7 +3,7 @@ server {
     listen  [::]:80;
     server_name  localhost;
 
-    error_page   500 502 503 504  /50x.html;
+   #  error_page   500 502 503 504  /50x.html;
    #  location = /50x.html {
    #      root   /usr/share/nginx/html;
    #  }