I boiled a midwest supplies pumpkin ale kit in early august. I added approximately 60 ounces of canned pumpkin at the end of the boil. The pumpkin had no preservatives in it and was baked at 350 degrees for 30 mins prior to adding to the boil. After the six week period I observed that the krausen cap did not fall to the bottom of the carboy. I decided to let the wort sit in the carboy until the krausen cap fell to the bottom of the carboy. Approximately a week and half ago the cap fell but I was not able to keg it. I checked on the beer today and noticed the white milky growth ontop of the beer. When I shook the beer I saw some yeast fall to the bottom. Is this beer ruined? Should I bother kegging it?