I have not made any changes on my end and now I am no longer able to log into the manger side of the site. Also, some of my pages are no longer available. I receive this message using Firefox:
The connection was reset
The connection to the server was reset while the page was loading.
The site could be temporarily unavailable or too busy. Try again in a few
moments.
If you are unable to load any pages, check your computer's network
connection.
If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.
From Chrome:
No data received
Unable to load the webpage because the server sent no data.
Here are some suggestions:
Reload this webpage later.
Error 324 (net::ERR_EMPTY_RESPONSE): The server closed the connection without sending any data.
See if you can log into cPanel and repair all the tables in PhpMyAdmin. You may have a corrupted DB. It's also possible that the site has been hacked.
Thanks for your response Bob. I was at a loss. The host installed MODx again; I reset the password; the host changed the cache directory to writable and now my changes are showing up.