FTP issue between Infuse 5 Pro and Bitport on Apple TV 4

Anyone having problem with FTP between Infuse 5 Pro and Bitport via Apple TV 4? It always said error occurred when attempting to play any movie. I contacted Bitport and they said it has to do with Infuse 5 Pro that does not accept their FTP. Then I contact Infuse 5 Pro and they said it’s Bitport FTP link is not working right. It is like back and forth or loop confusing miscommunication for me with them. If anyone has solution for this, please let me know. Thanks.