I would like to find the mail attached to a script

Can anyone help me find out who is the owner of a script ? We added a script on my website 2 years ago and I can't find out to which mail address it is attached : https://script.google.com/macros/s/AKfycbz-weX3Qj1c3IbHaVmEI7YhTE0wfE4YSvCav3y5IifmN7xJAQrE/exec