More than one Character Booster not working on one character

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Date & Time: 02/14/2018 08:15 pm
Frequency: once
World name: Diablos
Character name: Ruby Radyx
Retainer name: N/A
NPC name: N/A
Monster name: N/A
Class/Level: Black Mage Lvl 60
Party or solo: Solo
In-game time:
Area and coordinates:
Housing:
Steps:
1. Bought second "tale of.." booster book to gain summoner class booster and shire set
2. Wouldn't let me use the second book
3.

I haven't seen any warnings saying one character can't use more than one booster book, I used the black mage book a couple weeks ago and now was hoping to use the summoner one as well. I submitted a question to the gm's on the game but was rerouted here for an answer. If I can't use more than one book on a character, can I send the book and coffer to my alt character?

You can only use one book at a time. Use the book you already own, log back in as it kicks you from the server not the game when you use the book. then receive the other book and use it.

it is not a bug, it tells you you can only use or have one you one jump potion book at a time. same goes for coffer, if it is the same coffer you can only own one at a time so use the coffer as well.