500 Error on Post

I’m using this plugin along with the Database extension. I recently ported my site to a Windows server and am having some issues with the forms posting.

When I hit submit, I get a 500 error in the response (and nothing happens on the front end) but the data goes into the database. This all works fine with the Linux install using the same codebase and database!

Any idea what could be happening? Here’s the data I’m getting back:

Request URL:https://www.domain.com/feedback
Request Method:POST
Status Code:500 Internal Server Error
Request Headersview source
Accept:application/json, text/javascript, */*; q=0.01
Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en,en-US;q=0.8
Connection:keep-alive
Content-Length:228
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
Cookie:__utma=65661931.1041711493.1337076791.1351009414.1351157836.89; __utmc=65661931; __utmz=65661931.1349861453.79.13.utmcsr=domain.com|utmccn=(referral)|utmcmd=referral|utmcct=/dba/navigation.php; wordpress_test_cookie=WP+Cookie+check; wordpress_logged_in_079b5d02d82c0684d7fd3d97d82db718=admin%7C1351338214%7Cb586c296a5e3a595ad7e93f66439d9b3; wp-settings-1=editor%3Dhtml%26hidetb%3D1%26wplink%3D1%26urlbutton%3Dpost%26align%3Dright%26imgsize%3Dmedium%26mfold%3Do; wp-settings-time-1=1351165415; __utma=240766214.1092823521.1351164243.1351164243.1351176567.2; __utmb=240766214.8.10.1351176567; __utmc=240766214; __utmz=240766214.1351164243.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __atuvc=8%7C43
Host:www.domain.com
Origin:https://www.domain.com
Referer:https://www.domain.com/feedback
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4
X-Requested-With:XMLHttpRequest
Form Dataview URL encoded
_wpcf7:519
_wpcf7_version:3.1.2
_wpcf7_unit_tag:wpcf7-f519-p103-o1
_wpnonce:869aba1b31
your-name:
your-email:
your-message:
_wpcf7_captcha_challenge_captcha-420:450923607
captcha-420:
submit:Submit Feedback
_wpcf7_is_ajax_call:1
Response Headersview source
Content-Length:1208
Content-Type:text/html
Date:Thu, 25 Oct 2012 15:01:35 GMT
Server:Microsoft-IIS/7.0
X-App-Hosting:pool=classic
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