Changedata.php 404 error

[mdgnys]

Hi, I've been having troubles with changedata.php. Whenever I change a page's options I get my site's 404 error. I've changed the file to 777 etc to no avail. When I change normal page content its fine. Theres nothing in the debug section. I've checked htaccess files etc. Thanks in advance.

[shawn_a]

Probably caused by mod sec on your server.

[mdgnys]

Should the mail folder htaccess be set to ignore the admin folder? Theres no htaccess in the admin folder right now.

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Okay I added a mod for the admin folder in the htaccess but to no avail.

[shawn_a]

I don't know what that means.
Mod security is an apache module that blocks shit on your host.

[mdgnys]

What could it be blocking? Its worked in the past.