Fireworks CS6 Don't work in my Creative Cloud

I am sorry, Enrique, but Fireworks CS6, and all Creative Suite 6 software titles are no longer available through a Creative Cloud membership.  If you purchase Fireworks, as part of a Creative Suite 6 package, then you will need to remove all currently installed Adobe software, download and run the CC Cleaner tool, and then reinstall CS6.  After CS6 is fully installed, activated, and licensed, then you can proceed with installing the applications that are included with your membership.

Finally, to fully take advantage of your Creative Cloud membership, we would recommend you upgrade macOS to 10.14 or higher. 

For more information see:

• Use the CC Cleaner Tool - https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html
• Creative Cloud System Requirements - https://helpx.adobe.com/creative-cloud/system-requirements.html
• Apps available for download - https://helpx.adobe.com/download-install/kb/download-availability.html

Good evening.
If you have an All Apps contract, you should be able to use Fw (I can also install on Windows 7 and 10 with an All Apps contract), but if there is one point of concern, it will be used. It is necessary to confirm the environment of the PC.
Especially in macOS10.15, it is possible that the installation of Fw may not be possible due to the discontinuation of support for 32-bit application operation on the OS side.