I know some apps in CS6 work and others don’t in Mojave. Has anyone tested Dreamweaver CS6 specifically?
I also had problems with some old software, including Adobe Photoshop CS5. It wouldn't even open for me. So I asked here about it and got an answer that works. I think you should try it too...
It basically says to enable the apps in your Accessibility settings.
From Monomeeth's answer...
1 Go to Apple > System Preferences…
2 Click on Security & Privacy
3 Select the Privacy tab at top right
4 In the lefthand pane select the Accessibility option
5 At bottom left of the window make sure the padlock is unlocked (if not, select it and enter your password)
6 In the list of apps on the right-hand side, make sure Photoshop and any of the other apps you’re having problems with are ticked
7 OPTIONAL: If any apps you’re having problems with are not listed, click on the + button under the list and navigate to the apps to select and add them to your list. Once done, then repeat Step 6
8 Make sure you lock the padlock again that you unlocked at Step 5
9 Quit and restart any apps you’ve just allowed to control your Mac (i.e. if they were already open)
Good luck! :-)