Okay, but the minimum is 2 isnt it? When i registered some weeks ago it was already 2. How can it be reduced now to 1?
As already stated by Mahdirakib, your base reward has been reduced due to low ratio of the wagered amount to faucet winnings.
I just want to add that there should be a ⓘ button (next to your base reward in the payout table) telling you the reason why the base reward has been reduced.
Well, sorry if I misunderstand you but that button is already there like we can see in the shot below..

But issue here is not actually the absence of the
Note or
Attention button like I usually refer to it as, the issue is that most gamblers lack attention to information, they don't read, that button exist there and a single click on it will give a clear and simple explanation of what the other user asked about, but unfortunately, most users don't take notice of the button, those who do don't seem to care to know what it does.