I have been a creative cloud subscriber for the past year with a downloaded and updated version (not trial version) of InDesign CC2015. A week or so ago, this started: whenever I tried to launch InDesign, The Adobe Application Manager pops up and tells me I have a trial version of InDesign, I need to sign in and I have a certain number of days until the trial expires. I have quit out of Creative Cloud and opened the Activity Monitor (I am on a Mac, running Yosemite) and quit or force quit out of any creative cloud activity and restarted. Then I can sometimes launch InDesign. The next time I start my Mac and launch InDesign, I have to go through the same thing. What's going on?
Try this, Uninstall InDesign, using the drop-down menu (the gear icon) in the Creative Cloud app, then run the Adobe Cleaner: Use the Creative Cloud Cleaner Tool to solve installation problems then reinstall InDesign.
The cleaner tool seems to require that all Adobe products be uninstalled for it to work. I uninstalled InDesign, restarted and reinstalled. I'll see how that goes before I spend the time uninstalling everything. Thanks.