I write each daily credit in a list and until yesterday all was fine. Today i see the daily credit is moved by one day in the future.

For the first of thirty days (11-04-11) your stats lists 95,398 but this is not true. This value was reached on 11-04-10 and the correct amount of credits on 11-04-11 was 83,832...
11-04-12 B!S: 83,832 my list: 86,784
...
11-04-30 B!S: 69,014 my list: 83,056
11-05-01 B!S: 83,056 my list: 82,625
...
11-05-08 B!S: 28,071 my list: 34,503

Yesterday either i did not check my daily credit or B!S was down.
I had seen this behaviour also in the past after server/db-problems.

The data on the database server is ok, the data on the webserver did not fully synchronize.

It will be ok (eventually).

In the moment i have +65,812.56 since the last daily update...

DB- and webserver are back in sync. After the daily update are 35,980 credits listed.