Unable to purchase amped seasonal collection store skins

After purchasing several activity packs for the latest skin event of R99, I received the latest skin for R99. However, when I wanted to directly purchase the character skin available for sale in the store using gold coins, it showed that it was not applicable.In order to obtain this skin, I have spent nearly 6,000 gold coins in addition. The reason is that there was a bug in the store, which prevented me from directly purchasing this skin.fix it plz