Adobe Illustrator and Photoshop Black Screen

I would suspect that you need to use also on a MacOS device the uninstall option for the software provided by the OS. Deleting installs is never a good idea, as you do not know what else has been changed and needs cleaning-up. Use the CC-Cleaner tool as described:

https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html

@RuskinF 

No need to back-up the Adobe directories when the user deleted all the files and destroyed as such the installation...

Follow this guide. It will help you.

Back up all files stored in Adobe product directories, including custom plug-ins or profiles you have installed.

To uninstall Creative Cloud or Creative Suite applications, in the Finder, navigate to Applications > Utilities > Adobe Installers.

Double-click the application's uninstaller.

Uninstall app
Follow the onscreen instructions to complete the uninstallation.

Restart your computer.

Download the Adobe Creative Cloud Cleaner Tool for Mac: click the link to download the file - AdobeCreativeCloudCleanerTool.dmg.

If you see a download or save file prompt, click Save File to download it on your computer.
To run the Adobe Creative Cloud Cleaner Tool, double-click the AdobeCreativeCloudCleanerTool.dmg file.

Adobe CC cleaner tool
Double-click Adobe Creative Cloud Cleaner Tool and follow the onscreen instructions in this order:

Select your language from the menu in the upper-right corner of the window.
Review the Adobe End-User License Agreement: Click Accept to accept or Quit to decline (if you decline, the script stops).
Select an option from the menu in the upper-right corner of the window. For example, select CC Apps if you want to uninstall a Creative Cloud app.

From the table, select the app you want to clean up, and then click Cleanup Selected. (Click Clean All to clean up all installer-related files for the option you chose in step c.)
Similary, to clean up CoreSync, first ensure that you have selected All in the pop-up menu. Then select CoreSync from the list and click Cleanup Selected.
(Optional) If you're unable to connect to Adobe's servers, select Fix Host File from the table to repair your host files, and then click Cleanup Selected. The Cleaner Tool creates a backup of the hosts files (named hosts_bkup) in the same directory, which you can revert to if a problem occurs.
NOTE:

The End-User License Agreement is displayed in English or Japanese, depending on the language setting of the Root user account.

When you see the message "Adobe Creative Cloud Cleaner Tool completed successfully," click Quit and restart your computer.

To verify that the Adobe Creative Cloud Cleaner Tool completed successfully, in a text editor such as TextEdit, open /Users/[user name]/Adobe Creative Cloud Cleaner Tool.log.

Review the log file entries. If any of the entries indicate failure, contact us.

Once you have successfully run the Adobe Creative Cloud Cleaner Tool, install your Creative Cloud or Creative Suite application.

Hi

I'm not a MAC user, but you could try using the Adobe Cleaner Tool

https://helpx.adobe.com/ie/creative-cloud/kb/cc-cleaner-tool-installation-problems.html