Aneta, if that is what your Help menu says, then it looks like you're still using the old beta version. Can you check what it says under "About BrillKids Little Reader" - what version is it?
If you're still using a beta build, please download the latest release version here:
http://www.brillkids.com/little-reader/basic/little-reader-homebasic-overview.php(click on Free Trial).