Drupal Page times out

Hi All,

The main Drupal config index page won’t load. In all browsers, it thinks for a couple of minutes, then spits out an internal server error. It is only “/admin/config”. However, sub-pages of config, like, “/admin/config/development” are ok! Content pages all work ok, modules, reports, appearance etc. all work ok.

The sever log says: Script timed out before returning headers: index.php

I had added a module or two and removed them that day, but nothing to core or any .htaccess files.

Any hints at what is wrong with this page? Any ideas welcome, thanks!


Drupal version: 

Source: https://www.drupal.org/taxonomy/term/22/feed