Install extras not showing up

When trying to install more scripts from Help > Support Assistant > Install Extras or from Script icon menu > More Scripts, nothing shows up. Seems like I can’t connect to Devontecnologies servers. I recently updated to Devonthink 4. I don’t have a VPN or anything blocking traffic, and Devonthink has full access to the drive. I have also tried to reinstall the app without success. What else could be wrong?

This is probably this problem:

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