Button list - Pinterest not working + can not remove items once added

Problem/Motivation

DRUPAL 10.3.10
Better Social Share 1.1.3

1. The Pinterest button shows a black page and nothing else on laptop windows firefox
2. In the configuration, I can not change the list of button to display.

Thanks !

Steps to reproduce

Go to https://acc.reseau-idee.be/
- Try the Pinterest button on laptop windows, firefox
- in the administration, I can not remove buttons once they have been added. Ping me for the credentials.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes