Crowdify has informed us that some boosters are having problems because of the Safari browser and sometimes end up on a blank page instead of our project. If you have such problems, please try again with a different browser, e.g. with Firefox or Chrome.
Hopefully their IT can fix this soon.
Big thanks to our first 7 "boosters" for your generous and fast support !!! We have already reached 40% in the first few days.
May many more follow your example so that we can reach and exceed 100% ;-)