Cannot upgrade NextcloudPi to v1.38.2

I am trying to update to v1.38.2 via the GUI Panel. It keeps running into a 404 Page Not Found error.

Summary

[ nc-update ] (Tue Aug 17 08:18:40 EDT 2021)
Downloading updates
Performing updates
Installing metrics
Hit:1 http://deb.debian.org/debian buster InRelease
Get:2 http://deb.debian.org/debian buster-updates InRelease [51.9 kB]
Get:3 http://deb.debian.org/debian buster-backports InRelease [46.7 kB]
Hit:4 http://security.debian.org buster/updates InRelease
Ign:6 https://download.docker.com/linux/ubuntu buster InRelease
Hit:7 https://download.docker.com/linux/debian buster InRelease
Err:8 https://download.docker.com/linux/ubuntu buster Release
404 Not Found [IP: 13.225.63.85 443]
Hit:5 http://armbian.tnahosting.net/apt buster InRelease
Get:9 http://deb.debian.org/debian buster-backports/main armhf Packages.diff/Index [27.8 kB]
Get:10 http://deb.debian.org/debian buster-backports/main armhf Packages 2021-08-17-0804.49.pdiff [1308 B]
Get:10 http://deb.debian.org/debian buster-backports/main armhf Packages 2021-08-17-0804.49.pdiff [1308 B]
Reading package lists…

E: The repository ‘https://download.docker.com/linux/ubuntu buster Release’ does not have a Release file.
W: Target Packages (stable/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:12 and /etc/apt/sources.list:15

Not sure if this is on my end or not.