I downloaded a couple of new themes earlier and haven't had any luck getting any of them to activate. I looked through the directories via FTP and noticed that they all appeared to have installed as packages instead of just base themes. My issue is that once they are installed and I am at the "Pages and Themes" page and the "Themes" tab, it lists all of the themes. If I try to choose one of the themes that I downloaded and click Activate and then Yes, activate this theme on the following page, it then takes me to an error page. It says

"
Server Error in '/' Application
"

as the heading with the following as the body

"
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".


<!-- Web.Config Configuration File -->

<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>


Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.


<!-- Web.Config Configuration File -->

<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
"


Thanks in advance for any help that anyone can provide!