Shinemaker (10)LoginStart 400 ErrBadparam

[Lorandi]

Hello,

I'm getting an error when trying to log in to the game for the first time, after installing l2j mobius using the steps in this post:
https://l2jmobius.org/forum/index.php?topic=3231.0

I'm using the live client, and installed Path of Rogue version (I hope that is correct?)

And I'm using the l2.exe from this post:
https://l2jmobius.org/forum/index.php?topic=2599.0

I believe it should auto create accounts, but I get this error when I try to:
You have been disconnected from the server. Please login again
(10)LoginStart 400 ErrBadParam
https://imgur.com/C1g3fe0

LoginServer and GameServer start up without problems, as far as I can tell:
https://i.imgur.com/mOs2AkL.png
https://i.imgur.com/S0u2coT.png

After trying this for a while I created an account using the AccountManager.vbs program, which seemed to work fine,
but I'm still getting the same error when trying to log in.

Any ideas what's causing this, or how I can solve it?
Just want to test some things on a local server.