Hi @shreef ,
There are a few things wrong.
First, these two Edges don’t go straight ‘down’:

If you set it up like this, you can use S, X, 0 (zero) to get it straight:

This Face on the side is not flat:

Same trick as above to fix it.
I think you also need some Bevel Weight on this Edge:

Then everything should work. (Maybe also reduce the Bevel Amount a bit.)