Also I want to report some things, there was a time where I botting, then suddenly my internet goes "Request timed out" for around 1-2 mins. My ISP been a bit bumpy nowadays. Like this
During this time, the ffxiv.exe (game client) closed itself. And as usual, the bot's gui_launcher will retry to login. The launcher said "Launching" then a few secs later it was giving me Invalid Account. No, my account isn't invalid! username and password is correct, my internet is just having rto spikes some times,.
And the "Stop" button next to the (Settings and Manage) turned into "Start"..... and bot stop completely.... from any attempt to relogin.
Lucky I was awake, so I pressed the "Start" button again (after the request timed out problem gone, and internet back to normal), and the bot runs.
tldr in short:
Invalid Account error isn't caused just because of there's something wrong with credentials (password, and user id), but can also be caused if there's internet connection problem on your side.
Hopefully there's a way to make it keep retrying in 1 minute, rather than completely stop restarting.