If you start the exercises and see a blue, white, grey or black screen, this is often due to the settings in your PC or browser.
In your browser data, first delete the cookies and cache. For this, you can follow the following instructions according to your browser:
Firefox
https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox
Chrome
https://support.google.com/chrome/answer/2392709?hl=en-GB&co=GENIE.Platform%3DDesktop
However, if there are any problems, please let us know. You can contact us at info@neuronation.de. Please include a screenshot of the problem with the request.