A blank search on dokuwiki.org:
Results in the following:
"Welcome to DokuWiki
This is the main page for the Open Source wiki engine DokuWiki. You can read more about DokuWiki and its syntax.
Important: If you want to test things please use the playground.
We're currently restructuring the whole wiki. If you can't find what you where looking for just come back later, when the dust settled."
Probably would expect to see the dokuwiki main page instead.