Badge Validation

I am using the BadgeOs plugin. After earning a badge, it is not validated with badgr(https://badgecheck.io/). Whenever I am trying to validate the badge, it always returns an error.
Please check this link: https://prnt.sc/PoJxIFHzMUcN

Please let me know how can I solve this issue.

Thank youl.

The page I need help with: [log in to see the link]