Header V3 RSA/SHA256 Signature Key ID FD431D51:BAD

So I followed the three steps to fix this but I ended up deleting both files, but I have a back up of the two files how do I replace the file so I can run it again reboot and fix the file? First step I did was to run the command rpm2cpio nss-softokn-freebl-3.14.3-23.3.el6_8.x86_65.rpm then change the cd to /usr/ and copy the file there but when I restart is states it is new and was updated but then when I run the rpm -qa command I get the same error on all my rpm packages error: rpmdbnextIterator: Skipping H# ### Header V3 RSA/SHA256 signature Key ID FD531D51: BAD is there another way to fix this. I am beginner Linux user. Unfortunately I can not share screen shot as it is a classified server.