Sounds like you may have made a load of sodium acetate. Congratulations - you now have glow-in-the-dark hot ice!
Another possibility is that you (also) have a load of sodium bicarbonate, which is far less soluble in water. This can form by the reaction of carbon dioxide with sodium carbonate. And if you've used hard tap water, there's likely a bunch of calcium carbonate in there too.
You need to first obtain more base. It may be an idea to use sodium hydroxide at this stage, if you feel you can be trusted with that. Otherwise you can continue with the sodium carbonate - but dissolve it in water first!
Dissolve your current lump of solid in distilled water. It's likely there will be some insoluble precipitate remaining. Filter this off, or decant the solution away from it, and keep it for later. It may be some or all of the harmala alkaloids. Or if you used hard tap water, it may be mostly calcium carbonate.
Test the pH of the liquid (you know, the one you just separated from the solid). If it's pH8.5 or more your alkaloids are probably the solid that you've reserved. Even so, try adding a little more sodium carbonate (or hydroxide) solution to see if anything more precipitates. If not, your alkaloids are in the solid that you set aside.
If your harmalas are contaminated with calcium carbonate, separation can be achieved in at least two ways (not to mention via chromatography, but you probably don't want to do that yet). One way is to redissolve the solid in a sufficient quantity of acetic acid/vinegar and then to follow the Manske precipitation procedure with hot brine.
Another way is to dissolve the alkaloids in a solvent such as butyl acetate, followed by precipitation with citric acid.
By taking particular care with this dissolving process - for example, by filling the material into a column (such as a glass turkey-baster, plugged with a little cotton wool in the spout) and percolating the solvent through it - the alkaloids will dissolve in separate fractions. By careful collection of the percolation fractions a separation of the harmala alkaloids can be achieved without having to resort to careful pH monitoring as in the VDS protocol, for example.
βThere is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
β Jacques Bergier, quoting Fulcanelli