Did you try the BSaylor version that are in the PD-extended external folder that you can find here in the Organelle forum?
I just tried loading both the PVoc~as well as the partconv~ on the Organelle and I get no errors here. For the PVoc, I did load a sample and it work fully, but for the part conv, I didnt test it with a file, I didnt have a convolution file on the Organelle, so couldnt test it. But I dont see any reasom why it shouldnt work.