Problem installing an application

I am trying to install an app
here’s what comes:

App “Grauphel: Tomboy note server” cannot be installed because the following dependencies are not fulfilled: The library OAuth is not available.

is it fixable??

I am faced with the same issue. I have attempted to manually install the php-oauth plugin, per the Grauphel installation instructions, but that method seems incompatible with the App store installation.

It’s not clear how to install and enable PHP OAuth for Grauphel via NextCloud.