Paypal sponsorship link on repository returns 404

[zowiebeha]

Describe the bug

The sponsor donation link on this repository returns a 404 page.

To Reproduce

1. Visit the repository at https://github.com/lansingcodes/api/
2. Look to the right-most sidebar and click on the Paypal donation link, under the "Sponsor this project" heading.
3. The hyperlink opens in a new tab, which displays a 404 page.

Expected behavior

Removal of the dead link, or re-instatement of the same or a new donation page.

Screenshots