staminers and medium doll

[abcp7]

i gave from one character to other a bp full of staminers and medium doll, but it is not increaisn a single second of stamina. It is not interchangeable?, because i asked in someone in the game, but he gave like a treasure box with a couple of staminer, and those did work.
 

[abcp7]

i bought the account and had several bps of staminers and medium doll, not a single one works on me or my other character.

[Shadovv2137]

Can u look on these items? Staminers, medium stamina doll, exp elixirs, super exp elixirs and Double Exps have the Expiry date.
If it's past the date visible on the items, then you can't do nothing about it.
Or try to reach Mrozu in game.