When a website page encounters a coding error on a IIS 7 (Windows 2008) or newer hosting server, it will by default show a generic "500 Internal Error" page. You can override this behavior and return a detailed error message with debugging info by placing a web.config override file in the document root of your website with the following content:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<httpErrors errorMode="Detailed" />
</system.webServer>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>If you already have an existing web.config file, you will need to edit/insert the "httpErrors" directive under the tag.
