2
You have renamed the theme from 1000ac to DNET, but there are still references in the theme for 1000ac when it tries to include the theme templates for left blocks (I assume all blocks are affected, though)
look for
<{include file=[...]
where it says 1000ac instead of DNET.
"When you can flatten entire cities at a whim, a tendency towards quiet reflection and seeing-things-from-the-other-fellow's-point-of-view is seldom necessary."
Cusix Software