Can't upgrade or install any software. Key error

Hi there. I am totally new to linux. I am having a problem updating and installing apps.

sudo pacman -Syu
:: Synchronizing package databases…
core is up to date
extra is up to date
community is up to date
multilib is up to date
:: Starting full system upgrade…
resolving dependencies…
looking for conflicting packages…
Packages (12) firefox-81.0.2-1 linux-firmware-20201005.r1732.58d41d0-1 linux58-5.8.16-2 manjaro-release-20.1.2-1
mhwd-db-0.6.5-4 mhwd-nvidia-450xx-450.80.02-1 mhwd-nvidia-455xx-455.28-2 pamac-cli-9.5.12-1 pamac-common-9.5.12-1
pamac-flatpak-plugin-9.5.12-1 pamac-gtk-9.5.12-1 pamac-snap-plugin-9.5.12-1
Total Installed Size: 931.56 MiB
Net Upgrade Size: 0.69 MiB
:: Proceed with installation? [Y/n]
(12/12) checking keys in keyring [#############################################] 100%
downloading required keys…
:: Import PGP key 428F7ECC7117F726, “Helmut Stult helmut@manjaro.org”? [Y/n]
error: key “428F7ECC7117F726” could not be looked up remotely
:: Import PGP key CAA6A59611C7F07E, “Philip Mueller philm@manjaro.org”? [Y/n]
error: key “CAA6A59611C7F07E” could not be looked up remotely
error: required key missing from keyring
error: failed to commit transaction (unexpected error)
Errors occurred, no packages were upgraded.

I ran into this problem and tried to fix by refreshing keys.
some commands I used to fix my problem:

sudo pacman -S archlinux-keyring
sudo rm -R /etc/pacman.d/gnupg/
sudo rm -R /root/.gnupg/
sudo gpg --refresh-keys
sudo pacman-key --init && sudo pacman-key --populate archlinux manjaro
sudo pacman-key --refresh-keys

One thing I want to mention is that last night I tried to install deepin file manager and to do so I installed gnome-keyring. Maybe it all started there. though I uninstalled and tried some fixes, mine is not fixed yet. Thanks