I was driving last night in my VW. While I was driving it felt like my car was lacking boost.

Once I got to my friends house I opened the hood and investigated.
I noticed that there is a crack and penny size hole on my manifold.
the crack is between the manifold and turbo.
Im not sure why this happend because I last drove my car about 2 weeks ago and didnt notice anything then.

Is there a way I could seal that up?
I dont really have cash to spend on a manifold right now so just wondering what I can do to temporarily seal it up?