Typeerror: Conn.query is not a function in desktop app

[gebeer]

Hello, first time user of Trongate. Thank you for the framework.
I am, trying to install it through the desktop app on Linux and getting said error after submitting DB details.
My settings for new app:
app name: trongate
base url: https://trongate.ddev.site
db connection details:

{
    "host" : "db",
    "port" : 3306,
    "user" : "db",
    "password" : "db",
    "database" : "db"
}

These are standard values for running a PHP app with ddev.

Any help would be much appreciated.