Little errors on sever start up

Now, these errors do not effect my server (as far as I know), but I’m nit picky and I want to fix them. Can someone tell me how to fix them?

The errors I’m encountering in console, while starting up my server are:

  • Error loading cfg/trusted_keys_base.txt
  • Error loading cfg/pure_server_minimal.txt
  • Lua JIT is DISABLED!
  • Nav File is wrong or something (4)

Just ignore this, you can’t fix it.