diff --git a/src/lib/language.js b/src/lib/language.js
deleted file mode 100644
index f8904dd07..000000000
--- a/src/lib/language.js
+++ /dev/null
@@ -1,14 +0,0 @@
-import { useI18nStore } from 'src/stores/i18n.js'
-
-export const piniaLanguagePlugin = ({ store, options }) => {
-  if (store.$id === 'sync_config') {
-    store.$onAction(({ name, args }) => {
-      if (name === 'setPreference') {
-        const { path, value } = args[0]
-        if (path === 'simple.interfaceLanguage') {
-          useI18nStore().setLanguage(value)
-        }
-      }
-    })
-  }
-}
diff --git a/src/modules/config_declaration.js b/src/modules/config_declaration.js
index bf6a5cd7b..a87066077 100644
--- a/src/modules/config_declaration.js
+++ b/src/modules/config_declaration.js
@@ -10,7 +10,7 @@ const simpleDeclaration = {
   store: 'server-side',
   migrationFlag: 'configMigration',
   migration(serverside, rootState) {
-    serverside.setPreference({ path: 'simple.' + field, value: rootState.config[oldField ?? field] })
+    serverside.setPreference({ path: 'simple.' + field, value: ootState.config[oldField ?? field] })
   }
 }
 */