Cannot Get "trisquel_9.0.1_amd64.iso.asc"

Hello.

I found I cannot get one of your gpg keys: Trisquel_9.0.1_amd64.iso.asc.
Tested devices and browsers:

1) Windows 10 Pro 21H2 (Build OS: 19044.1415) & Firefox 95.0.2.
2) Trisquel mini latest version & Abrowser latest version.

Situation:
It has been in the state of downloading until the final download fails.