Marketplace: Couldn't install plugin. Error code -9
Windows 10
Account: Creative Cloud All apps
When using Creative Cloud Desktop > Marketplace > Manage plugins I try to install "Watermark 3" (as an example). I click on install and then have to agree with some things and click "ok". The install butoon turns to "Installing plugin" but nothing seems to happen. After a while I get an error and I have no idea how to fix it (I checked the help center for error -9). My internet is fine.

