ERROR InstallMissingNodesJob KNIME 4.4.0

Hi,
I was trying to open an existing workflow built in 4.4.0 using Knime 4.4.0, and it prompted me to update some extensions. But when I clicked OK, I got the error below. It also seems like the link it is using does not exist.

ERROR InstallMissingNodesJob Could not create provisioning agent: Unable to read repository at https://update.knime.com/community-contributions/trusted/4.4/content.xml.

Could not query updates site for missing extensions
Unable to read repository at https://update.knime.com/community-contributions/trusted/4.4/content.xml.
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Anybody else having this issue? How did you resolve it?
Thank you!!!

Hi @rumanac , this is probably a proxy or firewall restriction for the SSL - it’s the message PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target that’s giving this hint.

You need to get *.knime.com whitelisted.

Alternatively, you can install the extensions directly from the zip file:
https://update.knime.com/community-contributions/trusted/4.4/TrustedCommunityContributions_4.4_202106221513.zip