Boot lid not locking
 

Hi

I have a 54 plate S80 and today when I got something from the boot the lid wouldn't close after.
I have tried closing with the car locked and unlocked but makes no difference. Also, I found where the boot can be locked/unlocked via the key and that doesn't seem to operate either.

Is it possibly something as simple as a blown fuse or something more serious?

The rest of the locks operate fine...

Many thanks in advance for any help/suggestions.