Update updateInformationArtist.ts

src/pages/cap-nhat-thong-tin-nghe-sy/updateInformationArtist.ts

@@ -914,7 +914,7 @@ export default defineComponent({
             account: account.value,
             socialEmbedded: socialEmbedded.value,
             artistLevel: artistLevel.value,
-            fields: [fields.value],
+            fields:  fields.value === null ? [] : [fields.value],
             nationality: nationality.value,
             qualification: qualification.value,
             works: works.value,