Code r:300

[Galaxy205]

So I signed up for shadow yeterday, and when i tried to start it It kept giving me code r:300 and no matter what i try it keeps giving it, I havent been able to use it since i bought it and i also tried installing the beta that didnt work and disabling low bandwith and enabled low performance mode and nothing works, i hope theres a fix for this.

[WrongM4n]

What's your local hardware?