Help appreciated

Does anyone know how to solve these errors in WSL Ubuntu? I am trying to install the Pragma flow Contacts list component.

Help would be appreciated with trying to run Yarn.
I would also like to know if this is the best component for what I want to do. I would like users to be able to share the app from inside the app (similar to Gas app or other mobile games). Insite on how to do so will be greatly valued.

These component by pragmaflow are old and not supported, this code might version issues.

You can find a contact list component here