Sometimes you get the FeralHeart+ black screen going on because you have to go back on to your regular FeralHeart and make sure the character you are trying to use is in Bonfire, Ficho, Fluorite etc... and has their home set to that position since the newer maps like Last Cave, Lonely Cave, Ascension, Skysrim, Atlantis, and the South Pole are not in FeralHeart+ so if you try to go to them or the character you are using is on one of those maps in the regular Feral Heart you'll load into the black world. Also I would recommend that you not use FeralHeart+ simply because it's not as well managed as the regular Feral Heart and it is very buggy and glitchy and will give you more of a headache than the regular version. Try to just stick to Feral Heart and it should run with little to no problems.