The source that most large affiliates used for Novomatic demo slots stopped working a couple of weeks ago. The issue originated from the operator’s (Bellfruit casino) demo server where the Novomatic embed games were iframed from. They had changed the configuration and a login was required to play the free version of the Novomatic slots.
We have located a new source that will hopefully last. Please re-import your Novomatic games via VegasHero / Import by Provider menu option to refresh the iframe URLs.