lightdash: Adding bookmarks buttons

[adlo]

I am attempting to implement bookmarks buttons for lightdash:

https://github.com/adlocode/xfce4-lightdash-plugin/tree/bookmarks-buttons

However, it does not seem to work as intended. When adding items to bookmarks, it tends to create duplicate buttons. Also, it sometimes crashes when removing bookmarks.

What could be causing this, and how could I resolve it?

Regards

adlo