500 error due to Form Action Line

[listfullofhope]

Hi,

 

Sorry if this topic has been covered before, but I was unable to find help tailored to this specific question. I run a site www.listfullofhope.com and last night for some reason whenever I tried to post an add or reply to an add I recieved a 500 internal sever error. I was told by my hosting company that something was wrong with my form action line yet I can not figure out what exactly is wrong. Below is the page on which my hosting company said they could view an error, so if you view the source about half way down is the form action line. Thanks for any help!

 

http://www.listfullofhope.com/?view=post&cityid=54&lang=en&catid=1&subcatid=68

 

Thanks,

Leon

[listfullofhope]

Here is the line I believe:

 

<form action="index.php?view=post&cityid=54&lang=en&catid=1&subcatid=68&adid=&imgid=&countryid=&areaid=&pos=&picid=&page=&foptid=&eoptid=&pricemin=&pricemax=&" method="post" name="frmPost" enctype="multipart/form-data">