Volver al almacenamiento en la microSD

Good evening. I am saving my database in a USB pendrive, but I want it in the same microSD card than the sistem.
The first configuration (database in the pendrive) has been done with the “Nextcloudpi Wizard”, but now, when I try to configure it against for “not to save in the pendrive” nothing happens. How can I do this?

Can I read any usb (for example Fat32 or NTFS) with Nextcloudpi?

NOTE: sorry for my languaje, I speak spanish.

Thank you!!