diff --git a/plugins/plugin-notes-data/src/node/prepareNotesData.ts b/plugins/plugin-notes-data/src/node/prepareNotesData.ts
index c68ce8f8..acf4e32c 100644
--- a/plugins/plugin-notes-data/src/node/prepareNotesData.ts
+++ b/plugins/plugin-notes-data/src/node/prepareNotesData.ts
@@ -83,7 +83,10 @@ export function watchNotesData(app: App, watchers: any[], options: NotesDataOpti
   if (!allOptions.length)
     return
 
-  const [firstLink, ...links] = allOptions.map(option => option.link)
+  const [firstLink, ...links] = allOptions.map(option => option.link).filter(Boolean)
+
+  if (!firstLink)
+    return
 
   const dir = path.join('pages', firstLink, '**/*')
   const watcher = chokidar.watch(dir, {
diff --git a/theme/src/client/components/Home.vue b/theme/src/client/components/Home.vue
index be40bfc4..4198ae29 100644
--- a/theme/src/client/components/Home.vue
+++ b/theme/src/client/components/Home.vue
@@ -25,15 +25,15 @@ const homeStyle = computed(() => {
       mask.value
         ? `linear-gradient(rgba(0, 0, 0, ${mask.value}), rgba(0, 0, 0, ${mask.value}))`
         : '',
-      `url(${withBase(matter.value.banner || '')})`,
+      `url(${withBase(matter.value.banner ?? 'https://pengzhanbo.cn/images/home-banner.jpg')})`,
     ]
       .filter(Boolean)
       .join(','),
   }
 })
 
-const name = computed(() => matter.value.hero?.name)
-const tagline = computed(() => matter.value.hero?.tagline)
+const name = computed(() => matter.value.hero?.name ?? 'Plume')
+const tagline = computed(() => matter.value.hero?.tagline ?? 'A VuePress Theme')
 const text = computed(() => matter.value.hero?.text)
 
 const actions = computed(() => {
@@ -44,7 +44,7 @@ const actions = computed(() => {
 <template>
   <div class="plume-home" :style="homeStyle">
     <div class="container">
-      <div v-if="matter.hero" class="content">
+      <div class="content">
         <h2 v-if="name" class="hero-name">
           {{ name }}
         </h2>
diff --git a/theme/src/node/defaultOptions.ts b/theme/src/node/defaultOptions.ts
index c08f5b61..47bd2018 100644
--- a/theme/src/node/defaultOptions.ts
+++ b/theme/src/node/defaultOptions.ts
@@ -2,7 +2,7 @@ import type { App } from '@vuepress/core'
 import { deepClone, deepMerge } from '@pengzhanbo/utils'
 import type { PlumeThemeLocaleOptions } from '../shared/index.js'
 import { pathJoin } from './utils.js'
-import { resolveLocaleOptions } from './resolveLocaleOptions.js'
+import { resolveLocaleOptions, resolvedAppLocales } from './resolveLocaleOptions.js'
 
 const defaultLocales: NonNullable<PlumeThemeLocaleOptions['locales']> = {
   'en-US': {
@@ -102,8 +102,9 @@ export function mergeLocaleOptions(app: App, options: PlumeThemeLocaleOptions) {
   })
 
   const langs: Record<string, string> = {}
-  Object.keys(app.siteData.locales || {}).forEach((locale) => {
-    const lang = app.siteData.locales![locale]?.lang || 'en-US'
+  const siteLocales = resolvedAppLocales(app)
+  Object.keys(siteLocales).forEach((locale) => {
+    const lang = siteLocales[locale]?.lang || 'en-US'
     langs[locale] = lang
     if (defaultLocales[lang]) {
       locales[locale] = deepMerge(
diff --git a/theme/src/node/resolveLocaleOptions.ts b/theme/src/node/resolveLocaleOptions.ts
index ed21b3cb..13f2d203 100644
--- a/theme/src/node/resolveLocaleOptions.ts
+++ b/theme/src/node/resolveLocaleOptions.ts
@@ -1,3 +1,5 @@
+import { isEmptyObject } from '@pengzhanbo/utils'
+import type { App } from '@vuepress/core'
 import type { PlumeThemeLocaleOptions } from '../shared/index.js'
 import { normalizePath } from './utils.js'
 
@@ -24,3 +26,11 @@ export function resolveLocaleOptions<
 
   return value ?? (fallback ? fallbackData : undefined)
 }
+
+export function resolvedAppLocales(app: App): NonNullable<App['siteData']['locales']> {
+  if (app.siteData.locales && !isEmptyObject(app.siteData.locales))
+    return app.siteData.locales
+
+  const defaultLang = app.siteData.lang || 'en-US'
+  return { '/': { lang: defaultLang } }
+}
diff --git a/theme/src/node/searchPluginOptions.ts b/theme/src/node/searchPluginOptions.ts
index 93435cc0..d262c156 100644
--- a/theme/src/node/searchPluginOptions.ts
+++ b/theme/src/node/searchPluginOptions.ts
@@ -2,6 +2,7 @@ import type { DocsearchPluginOptions } from '@vuepress/plugin-docsearch'
 import type { SearchPluginOptions } from '@vuepress/plugin-search'
 import type { App } from '@vuepress/core'
 import { deepMerge } from '@pengzhanbo/utils'
+import { resolvedAppLocales } from './resolveLocaleOptions.js'
 
 // `en-US` is used by default
 const defaultDocsearchLocales: NonNullable<DocsearchPluginOptions['locales']> = {
@@ -56,8 +57,9 @@ const defaultSearchLocales: NonNullable<SearchPluginOptions['locales']> = {
 export function resolvedDocsearchOption(app: App, options: DocsearchPluginOptions): DocsearchPluginOptions {
   options.locales ??= {}
 
-  Object.keys(app.siteData.locales || {}).forEach((locale) => {
-    const lang = app.siteData.locales![locale]?.lang || 'en-US'
+  const locales = resolvedAppLocales(app)
+  Object.keys(locales).forEach((locale) => {
+    const lang = locales[locale]?.lang || 'en-US'
     if (defaultDocsearchLocales[lang]) {
       options.locales![locale] = deepMerge(
         {},
@@ -72,9 +74,9 @@ export function resolvedDocsearchOption(app: App, options: DocsearchPluginOption
 
 export function resolvedSearchOptions(app: App, options: SearchPluginOptions = {}): SearchPluginOptions {
   options.locales ??= {}
-
-  Object.keys(app.siteData.locales || {}).forEach((locale) => {
-    const lang = app.siteData.locales![locale]?.lang || 'en-US'
+  const locales = resolvedAppLocales(app)
+  Object.keys(locales).forEach((locale) => {
+    const lang = locales[locale]?.lang || 'en-US'
     if (defaultSearchLocales[lang]) {
       options.locales![locale] = deepMerge(
         {},
diff --git a/theme/src/node/setupPages.ts b/theme/src/node/setupPages.ts
index a22f9f11..b81e7742 100644
--- a/theme/src/node/setupPages.ts
+++ b/theme/src/node/setupPages.ts
@@ -7,13 +7,13 @@ import type {
   PlumeThemePageData,
 } from '../shared/index.js'
 import { pathJoin } from './utils.js'
-import { resolveLocaleOptions } from './resolveLocaleOptions.js'
+import { resolveLocaleOptions, resolvedAppLocales } from './resolveLocaleOptions.js'
 
 export async function setupPage(
   app: App,
   localeOption: PlumeThemeLocaleOptions,
 ) {
-  const locales = app.siteData.locales || {}
+  const locales = resolvedAppLocales(app)
   const defaultBlog = resolveLocaleOptions(localeOption, 'blog')
   for (const [, locale] of Object.keys(locales).entries()) {
     const blog = resolveLocaleOptions(localeOption, 'blog', locale, false)
@@ -82,7 +82,7 @@ export function autoCategory(
   const pagePath = page.filePathRelative
   if (page.frontmatter.type || !pagePath)
     return
-  const locales = Object.keys(app.siteData.locales)
+  const locales = Object.keys(resolvedAppLocales(app))
   const notesLinks: string[] = []
   for (const [, locale] of locales.entries()) {
     const notes = options.locales?.[locale]?.notes