Apply for Certificate of Master's Degree

I lost my orginal Maste's degree certificate. How can I apply for that.
I had copy one.

Dear Sylvania,

You can apply for a duplicate in the academic office of your degree program.

Academic offices at Uni Hamburg: https://www.uni-hamburg.de/en/campuscen ... eros.html

Best regards,
BK

Currently, I am in Asia. Can I provide a letter of appointment on behalf of me to apply one? Thank you very much.

Dear Sylvania,

Please clarify your request directly with the academic office of your degree program.
https://www.uni-hamburg.de/en/campuscen ... ueros.html.

Best regards,
BK