The source node in most cases contains the sample message as written by the developer. If it looks like a dot-delimitted string such as "form.label.firstname", then the developer has not provided a default message.

Unable to render SEO tag for type '%typeName%' and field '%fieldName%' Nie można renderować tagu SEO dla typu '%typeName%' i '%fieldName%' key: Unable to render SEO tag for type '%typeName%' and field '%fieldName%'