ok, so, to solve this:
Login on your darkorbit normally, on the server you want to start the bot on, then close the webpage and ry to login back in the bot.
The problem is that when you login in the bot it logs in in another server (for example if you play on gb1 and gb2, and last time you've logged in in gb1, the bot logs in in gb1)
And if you put the gb2 server then it logins normally on the gb1, and then tries to go to the gamemap of gb2 (the server you have put in the bot).
Once again, to solve this, login normally to your darkorbit on the server you want to bot, hen close it and login in the bot on that server
Cheers !