Error sending PM all the sudden? Urgent -

[pythonimp]

Hey guys, so I've never had a problem with the PM system on my forum, and all of the sudden I try sending PM's to users and it redirects to a new page saying "403 error" when I reply.

I've not changed anything in the templates or code or anything. It's random?

Here is the URL I'm getting the error on:
http://www.codspot.com/private.php?do=insertpm&pmid=19184

Here is the error message:
HTTP 403 - Forbidden
This area is forbidden.
Suggestions

* Try Again
* Go to http://www.codspot.com/
* Try finding an archived copy in the Wayback Machine.

Why am I seeing this page?

The Alexa Toolbar offers suggestions when the page you are looking for cannot be found.

I need to fix this soon, tons of PM's are passed daily and is a big backbone to user communication here.

Thanks guys!

[Lynne]

Try reuploading all of your files. Ask your host if they have changed anything on your server.

[Speysider]

This is a problem with a browser addon you have installed yourself. Disable the addon "Alexa Toolbar" and see if it goes away. If not, check the private.php file has CHMOD 644 permissions.

If that still does not work, contact your host and ask them to whitelist you against mod_security.

[pythonimp]

Ok thank you guys! I got it fixed with removing the alexa toolbar.