I've uninstalled CC using the Uninstall App and redownloaded and reinstalled, and still the problem persists. The desktop app has been a PIA since I started using it with the window appearing blank most of the time. Then I have to quit it using Activity Monitor and relaunch.
Please refer the article : https://helpx.adobe.com/creative-cloud/kb/indesign-incopy-issue-cc-required-but-damaged.ht ml
Also please refer the thread : Error: "Adobe Creative Cloud is needed to resolve this problem."
Please let us know if it helps.