Khadas`s Ubuntu-focal repository broken

I use the latest ubuntu image VIM3_Ubuntu-gnome-focal_Linux-4.9_arm64_EMMC_V1.0.7-210625.img.xz
When trying to update repository I receive this error:

khadas@Khadas:~$ sudo apt update
Ign:1 focal InRelease
Hit:2 focal InRelease
Hit:3 focal-security InRelease
Hit:4 focal-updates InRelease
Hit:5 focal-backports InRelease
Err:6 focal Release
  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate.  Could not handshake: Error in the certificate verification. [IP: 443]
Reading package lists... Done
E: The repository ' focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

I have tried to fix it by this:

wget --quiet -O - | sudo apt-key add -

but it didn`t helps me

How can I fix the issue ?

@alexanib Hello , you can edit it to http

$ sudo vim /etc/apt/sources.list.d/fenix.list

edit it to http

deb focal main --> deb focal main

@Frank Hello,

Thank you very much! It works