if you want to use the local version download this and put it in the folder ‘game_store/images’.
https://www.dropbox.com/s/5b00ubu1erapu9q/store.zip?dl=1

|-- Client
    |-- mods
    |-- client.exe
    |-- data
    `-- modules
        |-- ...
        `-- game_store
           `-- images
                |-- 13
                |-- 32
                |-- 64
                `-- home


if you want to use the http version
uncomment "IMAGES_URL" in  GameStore.website (\modules\game_store\game_store.lua) , and follow this guide 
https://docs.opentibiabr.com/opentibiabr/downloads/website-applications/applications#store-for-client-13-1