Hook could not get addresses from any application, it always told me “No linkable items found in xxx”.
I found in it was blank in “Preferences → Security & Privacy → Automation”, no application was listed there, as shown the picture below:
1.1 Your accessibility permission database is corrupted
macOS accessibility permissions database can get confused. In that case you might see strange behavior like not being able to disable or enable permissions for an app. In that case, you may reset Accessibility for Hook as follows:
tccutil reset Accessibility com.cogsciapps.hook
reboot your Mac.
Could you please give it a try and see if it solves the problem?