Planner One installation

Hi guys,

We are facing a small issue during our Planner One installation. Previously we had installed with no problem. However this time during the Powershell installation an error pops up such as the image below. This is on a complete new server so don't know if it's a server setting that needs to be changed.

The system is not able to find the Planner One package. Anyone faced such an issue and was able to solve it?

Not able to get any support from Sage support regarding this so hoping someone here can help us out.

TIA