Hi everyone, I have the blocktype wich is using Google maps editor. No problem if I create the block from button + on Blocks tree, but if I try to create from the click "create a new blocl" on the ContentArea, the server return error 500 appears on the Console log and Create button is disable. I'm using the Google Maps Editor 1.0.10.0, EPiServer cms 10. Please help me fix it. Thanks
Here is my block type :

  public class GoogleMapSingleLocationBlock : BaseBlockData
    {
        [ClientEditor(ClientEditingClass = "googlemapseditor/Editor")]
        public virtual CoordinatesBlock Coordinates { get; set; }

        [UIHint(UIHint.LongString)]
        public virtual string Address { get; set; }

        public virtual XhtmlString Description { get; set; }
    }

Here is an error :