@Greta51 you could try rebuilding your Planner or carrying out a system reset as described here: https://www.sky.com/help/sky-tv/sky-tv-plus/sky-plus-watching-sky-tv/sky-plus-recordings/articles/re...
The system reset will delete your recordings.
If neither resolves the issue, your hard disk has failed and you'll need to upgrade to Sky Q or Stream. Contact Sky for your options.
If you don't want to upgrade you could investigate getting the hard disk replaced at your own expense. Note that you're won't be able to replace the box with another Sky+HD box.
