Hi,
Well, a "500 error" is just a generic error message of the web server. It doesn't provide any inofrmation which would allow us to help you. The real PHP error message behind it is what we need.
You can get it in two different ways:
- activate the "error reporting" and "debug mode" settings of the Joomla configuration and try again. In most cases, it would display the information about the error.
- if that first method doesn't work, you'll have to check for the "fatal error" message in your PHP error log. If you don't know how to access it, you'll have to ask your hosting provider.