How to Resolve FMCore/Extensis Connect Fonts Adobe Plugin Errors
Example of problem:
How to Fix:
1. Quit all Adobe programs.
2. Quit Connect Fonts.
3. Open the Self-Service app on your Mac.
4. Click Install on Connect Fonts, wait for that to complete.
5. Click Install on Connect Fonts - Install All Adobe Plugins
6. Once that is complete, reboot your device.
7. Launch Connect Fonts and make sure you're logged in, and then try using Photoshop again.