This is mostly due to caching, either in your browser or via your
ISP`s caching server.

Your can try following workarounds:

Step 1: Clear your browser cache.

Step 2: Hold in CTRL + SHIFT and press the Refresh button after browsing
to the site. (This will initiate an attempt to bypass your ISP's cache
server)

Step 3: Failing this, try to access this site with and without the 'www'
alias, for example:
http://www.kalkbay.co.za
http://kalkbay.co.za

Step 4: If you have accessed your site within the last few days under
either of the above url's, both may be cached. In this case, try the
following url:
http://dedi204.your-server.de/kalkbay

If any of the above url's return the correct site in the browser, the error
you are experiencing will be due to caching. Caching is usually specific to
a client or the immediate geographical area at the most and will not affect
the vast majority of your clients.

Caching servers furthermore are usually refreshed on a periodic basis and the
error is thereby automatically resolved on conclusion of the caching period
(usually not longer than 24 hours).