account name and password not valid

[Bomba]

Hello,

today I have installed the game (one again) to enjoy it as much as possible I can. Sadly after all installation have been done, the game has given me a "warning"? error? (perhaps the correct term would be, "a problem").
It say that:
"I'm sorry, but the account name and password you provided are not valid on this server. Be sure that you typed your account name and password correctly and try again."

Ok, what account? What password" What name"? When I have launched the DSLauncher it did find me some old accounts of mine, I did try launching them (for curiosity) but then I made a new account, generated new ID for that and still, the same issue above mentioned.
What I have done wrong? What I need to do?

Thank you in advance.

Link to picture:
https://imgur.com/qCtPIi4