Question: Filevault paused
Sierra OSX 10.12.6 on iMac (late 2015)
HD capacity 3.1 TB, available 2.48 TB
Started Filevault 6 days ago. Progress was ongoing for 3 days, then appeared to be stuck at 63%. Yesterday I didn't look at it, but today it shows 'Encryption paused'. How can I get Filevault to continue? Or what should I do now?
iMac with Retina 5K display, macOS Sierra (10.12.5)