flash player for installation ??

Hallo,
when start xertecheck.html i get the message, that i need flashplayer.
I tried to user ruffle extension for google but this doesn't work either

any ideas
i am new in administration of xerte
thanks

That file is hopelessly out of date. I'll remove it in the next release.

To install Xerte, instead of using xertecheck.html, just navigate to the main xerte URL. The installation/setup will start if needed.

See als the installtion manual inside the installer zip package.