Why does Minecraft show me that I have too little memory?

I play Minecraft on the Ps4 and yesterday I bought this Minecraft Store currency for 20 euro. I wanted to buy and download 2 of them. The purchase went well, but when I press the download button I get a message where it says.

"Not enough space - 170 MB"

"There's not enough space on your Ps4 system"

Then I can click "Next".

However, I still have almost 300 GB free. And every time I go to download after that, the MB number gets bigger, first 170MB then 300MB and bigger.

Restarting the game and the Playstation did nothing.

What should I do? After all, that was 20 euro.

You have an internal memory in Minecraft, you should delete a few maps that you don't need.

What does the world cost?
Not more than a Rolex!

Sorry that had to go.