The game's name isn't "the sacred rusty sword vanguard island", but rather "The Rusty Sword: Vanguard Island". Please make a request through the support hub to change this.

I know it's not a huge deal but it still pains me to see the wrong name and capitalization-

Hey there, I'm aware of this and have already made a request for it though it'll probably take awhile before it is updated because The game just got added as of this morning. Sorry about that

It's updated now.