Cannot get into Admin site

www.mldcrafts.com is working after installation or should I say appears to work OK but we cannot access the admin site.

We did change the admin folder name and when we do

http://www.mldcrafts.com/newfoldername or http://www.mldcrafts.com/newfoldername/index.php we just get a blank screen with no error message.

Is this a stock/manual install or a one-click hosting install?

Have you changed the two configure.php files to match your new admin directory?

Do you see any debug logs in your /logs directory when you trigger the error?

If so, what do they read?