Problem with CC desktop and installing 3rd party extensions

I'm trying to install a Project VII extension for Dreamweaver. Project VII suggested the Anastasiy’s Extension Manager, informing me that it was also Adobe's recommended software for 3rd party extensions. I downloaded that but got this error at launch:

Cannot read installed extensions information. Please try and run Extension Manager as Administrator and make sure all installation files are in place.

I am logged into the Mac as admin and my existing Dreamweaver extensions are working.

OS: Mac 10.14.6 Mojave

All CC apps up to date, Dreamweaver 20.1

 

I had previously used PVII's extension manager. It gave a very similar error and is now discontinued for Macs.

 

It isn't the new PVII extension, I can't get to the point of installing it. Both installers throw errors at launch.

 

At Anastasiy’s suggestion I removed CC Desktop app and then re-installed it. I had to use AdobeCreativeCloudCleanerTool, the un-installer in the app folder wouldn't work. No diffference. I remove Anastasiy’s Extension Manager and re-downloaded it. No difference.

 

Disk utility and Onyx both say my hard drive is fine.

 

If I go to user>Library>Application Support>Adobe>Extension Manager CC>Logs there are what looks like a lot of errors. Bellow are some of the more recent.

 

Any ideas?

 

05/31/20 11:18:27:654 | [WARN] | | exchangeplugin | EMCL | | | | 26251 | Failed to get version from file path "/Applications/Adobe InDesign 2020"!
05/31/20 11:18:27:654 | [WARN] | | exchangeplugin | EMCL | | | | 26251 | Failed to get version from file path "/Applications/Adobe Photoshop CC 2019"!
05/31/20 11:18:27:654 | [WARN] | | exchangeplugin | EMCL | | | | 26251 | Failed to get version from file path "/Applications/Adobe Photoshop 2020"!
05/31/20 11:18:27:654 | [WARN] | | exchangeplugin | EMCL | | | | 26251 | Failed to get version from file path "/Applications/Adobe Premiere Pro 2020"!
05/31/20 11:18:46:359 | [WARN] | | exchangeplugin | EMCL | | | | 26774 | Failed to get version from file path "/Applications/Adobe Media Encoder 2020"!
05/31/20 11:18:46:359 | [WARN] | | exchangeplugin | EMCL | | | | 26774 | Failed to get version from file path "/Applications/Adobe Bridge 2020"!
05/31/20 11:18:46:359 | [WARN] | | exchangeplugin | EMCL | | | | 26774 | Failed to get version from file path "/Applications/Adobe Dreamweaver 2020"!
05/31/20 11:18:46:359 | [WARN] | | exchangeplugin | EMCL | | | | 26774 | Failed to get version from file path "/Applications/Adobe Illustrator 2020"!
05/31/20 11:18:46:359 | [WARN] | | exchangeplugin | EMCL | | | | 26774 | Failed to get version from file path "/Applications/Adobe InDesign 2020"!
05/31/20 11:18:46:359 | [WARN] | | exchangeplugin | EMCL | | | | 26774 | Failed to get version from file path "/Applications/Adobe Photoshop 2020"!
05/31/20 11:18:46:359 | [WARN] | | exchangeplugin | EMCL | | | | 26774 | Failed to get version from file path "/Applications/Adobe Premiere Pro 2020"!
06/02/20 09:39:18:174 | [WARN] | | exchangeplugin | EMCL | | | | 4390 | Failed to get version from file path "/Applications/Adobe Media Encoder 2020"!
06/02/20 09:39:18:175 | [WARN] | | exchangeplugin | EMCL | | | | 4390 | Failed to get version from file path "/Applications/Adobe Bridge 2020"!
06/02/20 09:39:18:175 | [WARN] | | exchangeplugin | EMCL | | | | 4390 | Failed to get version from file path "/Applications/Adobe Dreamweaver 2020"!
06/02/20 09:39:18:175 | [WARN] | | exchangeplugin | EMCL | | | | 4390 | Failed to get version from file path "/Applications/Adobe Illustrator 2020"!
06/02/20 09:39:18:176 | [WARN] | | exchangeplugin | EMCL | | | | 4390 | Failed to get version from file path "/Applications/Adobe InDesign 2020"!
06/02/20 09:39:18:177 | [WARN] | | exchangeplugin | EMCL | | | | 4390 | Failed to get version from file path "/Applications/Adobe Photoshop 2020"!
06/02/20 09:39:18:177 | [WARN] | | exchangeplugin | EMCL | | | | 4390 | Failed to get version from file path "/Applications/Adobe Premiere Pro 2020"!