Not to worry: The Chariots of the Gods theme park in Switzerland has had its ups and downs, but it abides.
For PaleoJudaica posts on Erich Von Däniken, his goofy ideas about ancient aliens, and a surprise about his influence, see here and links (cf. here). Mr. Von Däniken is still alive and, as far as I know, well. He was still giving public lectures until the pandemic shut them down in 2020.
Visit PaleoJudaica daily for the latest news on ancient Judaism and the biblical world.