Why am I getting this?

When I install programs from a deb file, I seem to always get this:

Download is performed unsandboxed as root as file ‘/home/user/Downloads/program-1.25.4-version-11-amd64.deb’ couldn’t be accessed by user ‘_apt’. - pkgAcquire::Run (13: Permission denied)

Why am I getting this?

Will this keep my programs from operating correctly?