Q

You have just installed a JoomlaStats extension (for example module mod_jstat_flags) but it does is not workworking. On the front site frontend of your website you see the message "It seams that module xxx is not installed correctly....."

...

When you find your way to this page, you probably tried to install one of JoomlaStats extensions (like module mod_jstat_flags) without installing the JoomlaStats engine (com_joomlastats).

Probably on your page you have the message: "It seams that module Flags (mod_jstat_flags) is not installed correctly. Please refer to JoomlaStats extension installation problem page."
Mainly there could be
There are 2 reasons for this:
1) You do have not have installed the JoomlaStats engine (com_joomlastats) -> please install it. Have a look at SSS: 3 Simple Steps to Setup for help on how to do this.
2) This particular extension needs a more recent version of the component -> please check it on JoomlaStats Extensions page and/or install newer engine (see point 1).