All of a sudden sites pages are appearing blank??

So I installed Revo 2.2.9 without any issues. I have most of my site up already and was just going throuhg making a few changes when all of a sudden all my pages went blank - they just have the HTML, head and body tags and nothing else.

Manager still is working fine though...this is really weird

This is a new install, but the site was running fine for about 3 hours prior. All I was doing was FTPing an updated CSS file at the time.

I have no idea whats happened or how to fix it. Can anyone help me out?

Thanks!

Er... so I turned FURLS off and on again, and for whatever reason that worked. Weird

Check the HTTP response with something like http://httpstatus.io/ and logs. On production servers PHP is typically configured to not display errors (probably the reason for the blank page).

The problem may come back to haunt you.

One way that happens is a plugin with an E_NOTICE error or a deprecated function call. When the host upgrades the server, E_NOTICE errors can get turned on or deprecated functions can be removed. Then the plugin crashes with no output.

You might see something in the MODX error log. If not, disable any plugins that run on any front-end page load and re-enable them one at time until the problem comes back to find out which plugin is the culprit.