Until we test all of our plugins and update our installers, you will need to manually add Photoshop CC 2015 to our installers.
We highly recommend you read Adobe's FAQ on CC 2015 installation before you proceed further:
Download and install the latest plugin(s) you have from this link and follow the below instructions during the installation:
View the attached image as you follow these instructions:
1. When you get to the Choose Host(s) screen click on Add in the lower left.
2. In the Finder window that opens, you first MUST select columns mode (2..1) then go to the Applications folder and click on Adobe Photoshop CC 2015 folder and click on Plug-ins (2..2) and then click Open (2..3).
3. In the Choose Host(s) screen, you will see Host is other and Plug-in Folder is /Applications/Adobe Photoshop CC 2015/Plug-ins which is correct.
Click Next and then click Install and then Close
Restart your system (YOU MUST RESTART) and then the plug-ins will be installed correctly.