Who is the owner of ,,Toast'' project and can i post remix of this to Spotify, Itunes?

Hello, all!
I just made a remix of an auxy pre-built project ,Toast’’ and i want to publish it to Soundcloud and other streaming services. I don’t know who made this track and can i publish it to paid streaming services (Spotify, Deezer, Itunes). Help please!

@Fredrik is the creator of “Toast”, a full version can be found on his SoundCloud. You would need to ask him.

What’s his sc link?

https://soundcloud.com/gadnell

fredrik