Error on saving property fix

UnivateProperties_API/Repository/Properties/PropertyRepository.cs

                 }
 
                 property.PropertyImages = new List<PropertyImage>();
-                var lastID = dBContext.PropertyImages.Max(i => i.Id) + 1;
+                var lastID = 0;
+                if (dBContext.PropertyImages.Count() == 0)
+                    lastID = 1;
+                else 
+                    lastID = dBContext.PropertyImages.Max(i => i.Id) + 1;
+
                 foreach (PropertyImage image in images)
                 {
                     image.PropertyId = property.Id;