Bettercap UI

Hello again,

I am facing a problem in installing the ui on Bettercap,

the above picture shows the response when i request help ui.
I got no error when i set the path of where to install it. However, when i type ui.update i got the following:

Please advise

I tried to update bettercap, and nothing happen as well

any help would be very appreciated.

Thank you