ie, it was supposed to be for carbonation. Well, now it's just some more alcohol in the product. For carbonation you will need to add something else - either more extract, or juice - after the ferment is complete, and immediately before (like minutes before) bottling.
This is referred to as priming sugar (helps us know what you are talking about) - aside from malt extract or juice, you can also use corn sugar (dextrose), maple syrup, honey, and even cane sugar, though that's low on the totem pole.
Re-filling the pipeline - got a lot of brewing to do.