Generic Server Error

No information is displayed apart from that the site cannot load.

This is per design to not disclose any errors to an potential attacker but of course not helpful when troubleshooting. To get proper error information, open Web.config and find the line:

<customErrors mode="On" redirectMode="ResponseRedirect" defaultRedirect="Elements/Error" />   

Change mode to “Off” and reload your page. The underlying error should now be properly displayed.

Note: After the error has been remedied, change the mode back to “On”.