Ok i'm brewing a lager from coopers home brew kit it's my first batch ever and it been in the fermenter for 4 1/2 days now the airlock stopped bubbling after 2 1/2 days completly and theres no more krausen at the top really at all so today i took a hydrometer test ad it was 1.010 and the beer was very very cloudy and smelled sour i sanitized everything very well and this is the first hydrometer test i'v taking since i pitched the yeast i'v left it alone and not opened the lid but now i'm very worried that this is a bad batch dose anyone know why these things would happen do i just need to wait longer or am i screwed any help would be great thank you in advance EPS