Web Wizard is failing in Move data to USB step: orange nc-datadir

I am trying NextCloud for the first time and installed NextcloudPi by using the curl installer in home screen.
I am trying to use my old HDD external drive and I was following web wizard. Everything was good until it got to nc-datadir step where it went orange with the following error on the sidebar:

[ nc-datadir ] (Wed Aug  9 07:23:00 AEST 2023)
ERROR: the user www-data does not have access permissions over /media/bahriddin/ncdata

I changed owner of /media/bahriddin/ncdata to www-data but it didn’t help.

Any help would be appreciated.
Thanks :+1:t3:

What about the mount point above ncdata?


What are the permissions there?