Docker, Portainer, and Agent DVR

Hey everyone. So I just found out that my Amazon Special IP Camera will work with Agent DVR. So I was even more excited to find out that Agent DVR could be run in Docker. So I quickly installed Portainer so I could install Agent and a Docker container. And that’s when the wall came up and stopped me in my tracks. I followed the instructions as bet I could from Portainer’s web site, the Docker Hub site, and just random guessing as that had helped before and nothing. The error I get from Portainer is that the file doesn’t exist and yet is is there. Does anyone have any suggestions on what else I could try? The only two systems that run 24/7 are the RPi 3B and my Libreelec Kodi box. I would prefer to run the DVR on the RPi. These are the only two error messages I get form Portianer:
2020/10/11 02:15:45 proxy error: context canceled
2020/10/11 02:36:54 proxy error: context canceled

And that’s it, folks. Again I appreciate any help you can offer. Thank you.