Pyload will not install on docker-portainer

Hello together, i have installed docker portainer on a proxmox container well. Now, i would install the downloadmanager “pyload” on the part in portainer “Stack”. This installation will be good, but at the end i have problems with the port…pyload is running with port 8000 and docker portainer is also running at 8000-9000 (when i start docker portainer i will put the IP:9000 at the browser task.

can everyone help me how i can installed pyload ?

best regards