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I needed made a new one, because the small expenses wallet was default, and it isnt a single adress...
My proced is done, but maybe can be this a problem for others.

I think it is, let me google it.

The installation now comes with a default single-address wallet, called "Small Expenses Wallet".

:)

One step less, its a good idea from coders :)

You will only need to make a new one if you were a Byteball user before Jan 3. 2018 because since v2.1.0, default ("Small expenses") wallet is single-address wallet by default.