HTTP 500 Error on Search

Running 7.3.5 and this problem got me stumped.

When searching using the main site search I get a 500 error. 

Individual module search functions work fine. It is just the search on the main page.. general site search that has an issue.

http://molosserdogs.com

Any idea how to resolve this?

The only advice I can give is to look over the .htaccess file carefully.  Have you modified the one supplied by Boonex?

Hi GG,

I tried that but it did not work. I flush caches, emptied temp folder, empties cache folder etc.  Refreshed browser and tried new browser.

I uploaded the htaccess file from the 7.3.5 package without modification and no joy.

Not sure what else to try.  

I just tried it and got a white page.  No error messages from the web server.  I would look in the log files; including php as well as the web server logs and see if you notice anything.  Are you running on Microsoft Web Server?

Dang. I could swear that I replied to this last night.. anyhow..

GG sorry for the late reply.  I am running on LAMP. The weird thing is that search from all the modules work great. It is just the main search that breaks.  I checked logs last night but did not see anything weird.

 Turn on PHP error reporting out to the page and see if you see a php error pop up.  If you don't, then turn it back off.