How to increase the storage quota?

Hello everyone.
I’m using the Nextcloud Web interface and I need to increase the storage quota but when I try to increase the message “password confirmation is required” appears, follow the print below.

How do I increase the storage quota?
Thank you.

Hi Kokoliveira,

there should be a window popping up like in the screenshot below whenever you change the quota. where you enter the administrator password

https://cloud.vstans.nl/index.php/s/jE9vYWFMalqmD3u