Adobe Flash Player and Legend Online

The following text was translated by Google:

Hello, my PC was now formatted completely new, Windows 10 64 bit installed, recorded all available Win updates, newly downloaded all the drivers from the ASUS site and installed Firefox 48.0.2 installed, download the Flash Player from Adobe and installs, The game Legend Online (2.1.1.10263) downloaded and installed.
I start  Legend online. Now comes a note: "Gives please install Adobe Flash Player local storage function ..." (in German)
With the left mouse button, I can not achieve anything.
With the right mouse button to get to local settings and global settings.
In local settings I can not do.
With global settings actually is correct:

s66lode.oasgame.com 
uses 149 bytes
Allow
However, it is not applied.

I Play now LegendOnline from Facebook, but I can "please ... Gives" click on the question to Allow. I play again with the local client, the agreement reached on Facebook decision is read and all is well.

Sometime I have to click on the games doctor and everything starts all over again.

What am I doing wrong?