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.