My MacOS is in Danish. It sayes something like this in English:
Disk not pushed out properly.
Push out “Music” before the connection
is interrupted or turned off.
You just closed a disk (Music) without ejecting it. Not a terrible thing to do, but it’s better to eject disks properly by using the right-click/Eject from Total Finder.
Du har lige lukket en disk (musik) uden at skubbe den ud. Ikke en forfærdelig ting at gøre, men det er bedre at skubbe diske ud korrekt ved at bruge højreklik/Skub ud fra Total Finder.
I have tried to close both discs by right-clicking them. I restarted my iMac, but the error message still appears.
When you right clicked the disks, did you get a “Disk is being used by another program” Unable to eject the disk" message? You may have to force eject the disks.
Sorry for the late response.
Da du højreklikkede på diskene, fik du beskeden “Disk bliver brugt af et andet program” Kan ikke skubbe disken ud? Du skal muligvis tvinge diskene ud.
Undskyld for det sene svar.