I have Disney infinity 3.0 disc which I can't play with

Unfortunately the your Xbox is not compatible with physical disks. This is why yours is called the Digital Version.

The only option open to you is to sell the game you have and buy a digital copy via the store - it is currently available.

IN relation to the game itself - the Xbox Live services were terminated in 2017 therefore three achievements are impossible to now earn.

I have Disney Infinity 3.0 & have never had to have or been asked for Disney Infinity 2.0..

DI 3.0 will play any of the previous playsets.

Do you actually have the base & a playset?

A descrição do jogo não significa que a base seja necessária:

Descrição

"Você já possui o Disney Infinity 1.0 ou 2.0 e quer jogar Disney Infinity 3.0? Traga a aventura! Você pode comprar o software de videogame Disney Infinity 3.0 como um download digital e desbloquear imediatamente o Disney Infinity 3.0 Toy Box. Criar histórias
e aventuras divertidas com novos personagens e poderes!

Esta compra inclui apenas o Software de jogos de vídeo do Disney Infinity 3.0. Por favor, note que uma plataforma compatível com a Disney Infinity Base e um mínimo de 1 Disney Infinity Figure é necessária para jogar. A Disney Infinity Base está disponível
apenas nos pacotes iniciais Disney Infinity Starter Packs ou nos Disney Infinity 2.0 Toy Box Combo Packs. Para mais detalhes sobre a compatibilidade do Disney Infinity Base, visite Disney.com/Infinity.

Você precisaria comprar a base para continuar jogando ou solicitar um reembolso.
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[Mod Translation - The description of the game does not mean that the base is needed:

description

"You already have Disney Infinity 1.0 or 2.0 and you want to play Disney Infinity 3.0? Bring adventure! You can buy Disney Infinity 3.0 video game software as a digital download and instantly unlock the Disney
Infinity 3.0 Toy Box. with new characters and powers!

This purchase only includes the Disney Infinity 3.0 Video Game Software.
Please note that a platform compatible with the Disney Infinity Base and a minimum of 1 Disney Infinity Figure is required to play.
The Disney Infinity Base is available only in the initial Disney Infinity Starter Packs or in the Disney Infinity 2.0 Toy Box Combo Packs.
For more details on Disney Infinity Base compatibility, visit Disney.com/Infinity.

You would need to purchase the base to continue playing or request a refund.]

To late to edit my last post. All the
Infinity 3.0 site really says is.

#4 – All-new multiplayer Toy Box Expansion Games will allow you to play with all of your Disney, Disney•Pixar, MARVEL, and Star Wars™ characters from Disney Infinity 1.0, 2.0, and 3.0 together.

Xbox one Disney infinity 3.0 edition is what i have is not installing at all