Account not found

[ragnaslave]

Hello, I have download the OK 2.1.0 from github, but when I run it it always says my account not exist.
I surely can login with this username, do I missing something?
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Checking for new portals... none found

Next restart in 30 minutes

Connecting to Account Server...
Connecting (play.uaro.kiev.ua:16900)... connected
Bus server started at 127.0.0.1 : 54308
New client connected: 0
Message: HELLO (from Unknown:0)
Client identified as Bard:0; broadcasting JOIN
Disconnecting (135.181.186.110:16900)...disconnected
Account name [] doesn't exist
------------ Query ------------
Enter your Ragnarok Online username again.
-------------------------------
Enter your answer: