As far as I can remember, yours is the first message I have read about Mac 10.12.4
I DO know that every time Apple updates Sierra, some people have problems
The only POSSIBLE solution I have read for this kind of problem is a complete re-install
Sign out of your account... Uninstall... run the Cleaner...
-for non-Cloud programs you need to DE-activate before uninstalling
-https://helpx.adobe.com/x-productkb/policy-pricing/activate-deactivate-products.html
-http://helpx.adobe.com/creative-cloud/help/install-apps.html (and uninstall)
-using the cleaner after uninstalling and before reinstalling is often needed
-https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html
-Restart your computer... Sign in to your account... Reinstall
-and 5 steps in reply #1 https://forums.adobe.com/thread/2144928