error on package installation

[marcorighi]

Hi, I got errors during package installation

[root@galileo ~]# pacman -Sy
:: Synchronizing package databases...
 core is up to date
 extra                                      5.3 MiB  4.79 MiB/s 00:01 [######################################] 100%
 community is up to date
[root@galileo ~]# pacman -S htop
resolving dependencies...
looking for conflicting packages...

Packages (1) htop-3.2.1-1.0

Total Download Size:   0.14 MiB
Total Installed Size:  0.33 MiB

:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 htop-3.2.1-1.0-i486                      143.0 KiB  1959 KiB/s 00:00 [######################################] 100%
(1/1) checking keys in keyring                                        [######################################] 100%
(1/1) checking package integrity                                      [######################################] 100%
error: htop: signature from "Andreas Baumann (sign) <mail@andreasbaumann.cc>" is unknown trust
:: File /var/cache/pacman/pkg/htop-3.2.1-1.0-i486.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] 
error: failed to commit transaction (invalid or corrupted package (PGP signature))
Errors occurred, no packages were upgraded.