Wordpress not pulling CSS (I think...)

Question

Out of nothing a wordpress based website I work on has decided to stop pulling the CSS (at least I think that's what's happening)...

Here's a pic of the wordpress admin dashboard:

Unsure what has caused it... can anyone shine any light on the problem?

I've blocked the URL because the site doesn't belong to me and I'm not sure my boss would be happy with me posting a picture of it online! I've been asked to fix it, I didn't write the site and haven't much WordPress experience.

It was working fine until this morning, and nothing has changed.

EDIT - Further information on the problem:

I debugged this in Firefox Firebug and on the

"The page cannot be displayed because an internal server error has occurred."

It should be mentioned that it's a windows server running IIS7

Answer 1

Please check whether css is showing in view source or not, have you enabled any plugin or update any theme etc. because some time it may give errors. Please try to clear cache.

Try to refresh your browser by pressing Ctrl+F5 in windows and Ctrl+5 in mac. it might be browser cache issue.

Answer 2

Adam, there are a few questions I have:

• Have you tried this in a new browser session (different browser even better)?

• Does the front-end of the website look fine with the correct CSS
  being loaded?

• When you view source or use the web inspector under the 'resources'
  tab, can you see the CSS file reference 'load-styles.php'. If you do the contents look like CSS rules?

Answer 3

This had happened to me as well. It usually goes away with a few browser refreshes. The dashboard functioned fine while it looked like this too.

Is the CSS loading for the front-end of the site?

Check your plugins if this problem persists. You may have to turn them off one by one.