Here are some helpful tips.
Your Binder stopped due to an error or it was removed due to age or inactivity.
Return to the Binder home page to retry creating your Binder.
If so, the link is outdated or incorrect. Recheck the link for typos or ask the person who gave you the link for an updated link. A shareable Binder link should look like https://gke.mybinder.org/v2/gh/....