Internal server error using Aplau Pupul theme

Where did that theme come from? These forums only support themes from the repository on this site, so you’ll have to ask wherever you got it from.

Oh sorry, haven’t seen that one before.

I just installed it on a test site and had no problems – so I’d doubt it’s a theme problem. Do you have any plugins active – they might be conflicting.

You could also ask on the theme’s forums, though not sure how active the developer is:

http://wordpress.org/support/theme/pupul