You filtered through cheese cloth so all the fine powder went through

You added an unknown amount of salt and maybe not all of it dissolved

You put it in the freezer for a short time so only tiny crystals formed or maybe nothing

Filtering with coffee filter when working with ground seeds doesn't work the powder will clog it fast

...

My guess is your extract is mostly seed powder and not much harmalas in there

To make sure try dissolving some in water and vinegar and see how much will dissolve..