Webfont not showing in Safari (Desktop & Mobil)

Hi there,
i need your help finding the reason why my webfont is not showing in safari. It works fine wirh Firefox an Chrome.

Here is the page i am building: https://ks.prg-backup.de

Thats my CSS:

@font-face {
  font-family: 'Quasimoda';
  src: url('/uploads/font/quasi-med.woff') format('woff'), font-weight: 500; font-style: normal;

}
@font-face {
  font-family: 'Quasimoda';
  src: url('/uploads/font/quasi-reg.woff') format('woff'), font-weight: 400; font-style: normal;

}

@font-face {
  font-family: 'Quasimoda';
  src: url('/uploads/font/quasi-li.woff') format('woff'), font-weight: 300; font-style: normal;

}