Okay so I have a batch of brew on now it is just one of those diy kits that come with a liquid malt extract, It started out great a bubbling like something fierce for two days and now all of a sudden on the third day it's stopped bubbling altogether! Is this normal or do you think the batch is ruined or what? New to brewing kind of nervous something is frigged up for it to go from 100 to 0 in a day!