Add User Manager

Hi
Dear MikroTik Team..!!
Currently I’m using RB951 router board and version update from 6,48 to 6,49
i want to use RADIUS Server
I’m adding the User Manager Services in Files but not load in Packages Tab..
what can i do for this…??
suggest the best solution, please.
files.PNG
packages.PNG

Reboot the device?

reboot device multiple times but still same situation

What is in the LOG after the reboot ?