קבל את התכונה @label של DButton כדי להציג כראוי

[merefield (Robert)]

You are attempting to use a string. But I don’t believe that’s supported.

You should be providing a localisation key which is linked to a string.

See:

Add localizable strings to themes and theme components

For those looking to add custom languages and translations to a Discourse theme or theme component, they can now include localised strings, which are made available for use in UI components. Translations are stored in the same format as core/plugin translations, and can be used in almost the same way. Themes can supply translation files in a format like /locales/{locale}.yml. These files should be valid YAML, with a single top level key equal to the locale being defined. These can be defined us…

Just look inside a popular plugin for guidance on how to do this in a plugin.

In general always look for examples of what you are trying to do in existing source code.