I have tried an Irish Red with a recipe including 3.5kg Malte Pale Ale, 1 kg Crystal , 0.1g Crystal Dark and Liberty Bell Ale M36. I got an OG of 1048 just as the recipe stated. Fermentation started about 4 hours later and went on for about 3 days on a dark place at room temperature. On day 6 FG was 1030 and got stuck there. I was expecting an FG of 1012. I tried over again, buying from a different shop just to check the quality on the items. The result was just the same. What am I doing wrong? Is there something I can do to ?reactivate? the fermentation process?