Add KIP1PATCHES=nosigchk to your hekate_ipl.ini file under the bootloader folder to disable signature checks during installation.
Re-download the file from a different source. Check the file size against a known good copy. Use a tool like hactool on your PC to verify the NSP’s integrity. the nsp file is missing a programtype nca hot
Look at the file size. Base games are usually several gigabytes (GB), while updates are smaller, and DLCs can be just a few megabytes (MB). Add KIP1PATCHES=nosigchk to your hekate_ipl