[Typo3] FTB - call to undef. funct: issearchindexpage()

[emA]

Hi there

I just started with the Futuristic Template Building Tutorial and i got
a little problem to which I can't find an answer anywhere. Maybe someone
can help me.

I installed the extensions, created the storage folder, created the
template record and DS/TO. In my opinion it should work, I have done it
step by step and checked it twice but it still doesn't work. I get the
same Error Message every time:

*Fatal error*: Call to undefined function: issearchindexpage() in
*/home/rhprodu/public_html/typo3/index.php* on line *344


*I hope that someone can help me out  :) 
Thank you! masone