Hi @Hannah,
The error mentions which container is using the volume you are trying to delete
Error response from daemon: unable to remove volume: remove DataVolume: volume is in use - [d0d2233b668eddad4986313c7a4a1bc0d2edaf0c7e1c02a6a6256de27db17a63]
The bolded section in the above line is your container's id which is using the volume.
What you can do is, remove the container and then delete the volume.