Error when deleting public key from Guard

Hi,

I want to delete my expired public key from the pgp.mailbox.org server, but the web interface yields the error "Authentication parameters are missing" in a pop up.

My goal to either delete the existing public key or revoke it and upload a new key of my new pgp identity. I don't want the old public key to exist uncommented on that key server. Also note that I don't want to extend the expiry of the old key as I want to use a new key.

Please tell me how to achieve my goal.

Steps to reproduce

• Navigate to settings -> security -> mailbox.org Guard
• Under Keys click "your keys"
• Click the delete button

Expected behavior

• Key is deleted from the server successfully

Actual behavior

• Pop-up with error "Authentication parameters are missing"

Details

{"error":"Authentication parameters are missing","error_params":[],"categories":"ERROR","category":"ERROR","code":"GRD-AUTH-0005","error_id":"-1564773354-19623109","error_desc":"Authentication parameter missing.","error_stack":[]}