Unable to download Container image file for 2.0.18

[daedlo]

Tried to Pull the 2.0.18 image file to update my MinimServer QNAP Container but I only get the following error message:

Update container apps list failed: HTTPSConnectionPool(host='github.com', port=443): Max retries exceeded with url: //qnap-dev/container-apps/commits/2.0 (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x430d750>: Failed to establish a new connection: [Errno -2] Name or service not known',))

I was setting Image Version to 2.0.18. Any help would be appreciated.