Hello. I've bought this pack by 1$, activating and that is typing it!
"Chronos Pack cannot be used ingame.
Gladiator Pack cannot be used ingame.
Orc Pack cannot be used ingame."

Check out your activated and viw your beginner pack. Inside him, you'll find the 3 packs, which you will have to unlock.

However, you can use only one item per type, so you can activate only one of these packs (or activate it part per part.

But i am activating it all and they again and again typing what cannot be activated!

You need to unlock them before you activate them. First deactivate the entire set they're in, then unlock them all seperately.
Once unlocked, you can wear all of the items of 1 set at a time, since you can't wear 2 colors of the same item at a time.