I have enabled to show everything from blizzard interface and it still dont show, other than that the addon is fine

There are a few things that can't be enabled through the interface options, or through NeatPlates at this time for that matter, regarding the showing/hiding of certain nameplates. I'll list some of the settings below, although some of these might exists in the interface options already.

/console SetCVar("nameplateShowEnemyPets", 1)
/console SetCVar("nameplateShowEnemyTotems", 1)
/console SetCVar("nameplateShowEnemyMinions", 1)
/console SetCVar("nameplateShowEnemyGuardians", 1)
/console SetCVar("nameplateShowEnemyMinus", 1) * For smaller almost critter like npcs

You can also replace the Enemy part with Friendly if you wish to enable it for friendly units. To disable just change the 1 to a 0.

Doing a bit of cleaning up and closing issues that are stale, or has been resolved by never confirmed to be resolved. If you believe this is in error, please comment and I'll re-open the issue again.