Can not connect to a database (localhost)

Hello,

I am trying to connect a database (localhost) though, I can not do it.
Please help me out! I am quite new to Wappler.

I was going through steps of this link.

Then I got this screen.

スクリーンショット 2019-08-22 23.04.51.png1102×1210 74.5 KB

I’m using MAMP by the way.

Thanks!