Error starting the game

https://gyazo.com/b0f1ae2eaf8db8caa79595a19b67a17b

Steam key broken?

Sorry guys, I forgot to translate.

It's not possible to execute the app due to lack of key integrity (?). Rewrite the valid activation key or re activate the app.

Hi,
i have the same thing since this week (last post). I send an error report, a mail and a post here.. No response ...

Come on guys, little bit of help...