SEPM Report - Quarantine - "Action Required"

One of our reports show that a threat has been quarantined, but the status comes up as "Action required".

If the file was successfully quarantined, why does it say "action required"? Is this just asking for a restart of the computer?

I'm wondering if this file that supposedly has been quarantined is still an active threat, or if it can be ignored? (the user will restart his computer sooner or later).