Failed to fetch models from remote server

Hi,

I am trying to use Nvidia AIAA for liver segmentation. I am not able to fetch the model from the remote server. Earlier it was working properly. Is there a new server address? I have tried the following one and not working

http://perklabseg.asuscomm.com:8000/v1/models
http://perklabseg.asuscomm.com:5000/v1/models
http://perklabseg.cs.queensu.ca:8000
“left blank”

Thank you!

Regards
Keyur Radiya