After effects is crashing every time I start up and I can not find a "Black & White" plug-in anywhere (the closest are "Black & White with *insert color* (RGB).cha" for Photoshop and "Black & White.act"). I have tried putting the .act file in another folder and opening the AE file but I still get the same error message.
(I am on a mac running OSX 10.10.2 with 4ghz i7, 16 gb 1867 ddr3, and gtx 760 4gb video card).
What version of AE are you running? Why haven't you updated your OS to 10.10.4?