Invalid target configuration error. Unable to connect to target

I’m a new user. I’m unable to connect to my server DB - getting the "Invalid target Configuration! " error. I’ve read another post on the issue, where the error was generated due to the FTP target being a folder within the public_html directory. That’s not my issue. My FTP target is /public_html. I am able to connect using my credentials with an FTP client.

My question, in Wappler Database Connection, am I to use my FTP credentials or the DB credentials? I’m not able to connect either way. But, it would be good to know I’m using the correct credentials as I attempt to connect.

Thanks.