diff --git a/pages/archive/index.js b/pages/archive/index.js
index 5241697d..e66b2abd 100644
--- a/pages/archive/index.js
+++ b/pages/archive/index.js
@@ -8,8 +8,8 @@ const ArchiveIndex = props => {
   const ThemeComponents = ThemeMap[theme]
   const { siteInfo } = props
   const meta = {
-    title: `${locale.NAV.ARCHIVE} | ${siteInfo.title}`,
-    description: siteInfo.description,
+    title: `${locale.NAV.ARCHIVE} | ${siteInfo?.title}`,
+    description: siteInfo?.description,
     slug: 'archive',
     type: 'website'
   }
diff --git a/pages/category/index.js b/pages/category/index.js
index 1545408b..f099d29f 100644
--- a/pages/category/index.js
+++ b/pages/category/index.js
@@ -9,8 +9,8 @@ export default function Category(props) {
   const { locale } = useGlobal()
   const { siteInfo } = props
   const meta = {
-    title: `${locale.COMMON.CATEGORY} | ${siteInfo.title}`,
-    description: siteInfo.description,
+    title: `${locale.COMMON.CATEGORY} | ${siteInfo?.title}`,
+    description: siteInfo?.description,
     slug: 'category',
     type: 'website'
   }
diff --git a/pages/index.js b/pages/index.js
index 9b8c8511..ec18b11c 100644
--- a/pages/index.js
+++ b/pages/index.js
@@ -14,8 +14,8 @@ export async function getStaticProps() {
   const props = await getGlobalNotionData({ from, pageType: ['Post'] })
   const { allPosts, siteInfo } = props
   const meta = {
-    title: `${siteInfo.title} | ${siteInfo.description}`,
-    description: siteInfo.description,
+    title: `${siteInfo?.title} | ${siteInfo?.description}`,
+    description: siteInfo?.description,
     image: siteInfo.pageCover,
     slug: '',
     type: 'website'
diff --git a/pages/page/[page].js b/pages/page/[page].js
index 1de94693..b6787758 100644
--- a/pages/page/[page].js
+++ b/pages/page/[page].js
@@ -12,8 +12,8 @@ const Page = props => {
     return <></>
   }
   const meta = {
-    title: `${props.page} | Page | ${siteInfo.title}`,
-    description: siteInfo.description,
+    title: `${props.page} | Page | ${siteInfo?.title}`,
+    description: siteInfo?.description,
     slug: 'page/' + props.page,
     type: 'website'
   }
diff --git a/pages/search/index.js b/pages/search/index.js
index 222d03d0..80cfe52c 100644
--- a/pages/search/index.js
+++ b/pages/search/index.js
@@ -23,9 +23,9 @@ const Search = props => {
   const { locale } = useGlobal()
   const meta = {
     title: `${searchKey || ''}${searchKey ? ' | ' : ''}${locale.NAV.SEARCH} | ${
-      siteInfo.title
+      siteInfo?.title
     }`,
-    description: siteInfo.description,
+    description: siteInfo?.description,
     slug: 'search',
     type: 'website'
   }
diff --git a/pages/tag/index.js b/pages/tag/index.js
index 50c9ff8c..a4c28dbf 100644
--- a/pages/tag/index.js
+++ b/pages/tag/index.js
@@ -9,8 +9,8 @@ const TagIndex = props => {
   const { locale } = useGlobal()
   const { siteInfo } = props
   const meta = {
-    title: `${locale.COMMON.TAGS} | ${siteInfo.title}`,
-    description: siteInfo.description,
+    title: `${locale.COMMON.TAGS} | ${siteInfo?.title}`,
+    description: siteInfo?.description,
     slug: 'tag',
     type: 'website'
   }
diff --git a/themes/example/components/Footer.js b/themes/example/components/Footer.js
index 86f0b9cb..d94e6648 100644
--- a/themes/example/components/Footer.js
+++ b/themes/example/components/Footer.js
@@ -19,7 +19,7 @@ export const Footer = (props) => {
   //       <span className="px-1 busuanzi_value_site_uv"> </span>{' '}
   //     </span>
   //     <br />
-  //     <h1>{meta?.title || siteInfo.title}</h1>
+  //     <h1>{meta?.title || siteInfo?.title}</h1>
   //     <span className='text-xs font-serif'>
   //       Powered by{' '}
   //       <a
diff --git a/themes/fukasawa/components/AsideLeft.js b/themes/fukasawa/components/AsideLeft.js
index c7f52d69..2b1f8f61 100644
--- a/themes/fukasawa/components/AsideLeft.js
+++ b/themes/fukasawa/components/AsideLeft.js
@@ -25,7 +25,7 @@ function AsideLeft (props) {
 
     <section className='flex flex-col dark:text-gray-300'>
       <hr className='w-12 my-8' />
-      { siteInfo.description }
+      { siteInfo?.description }
     </section>
 
     {router.asPath !== '/tag' && <section className='flex flex-col'>
diff --git a/themes/hexo/components/Header.js b/themes/hexo/components/Header.js
index 388f01a3..66770f77 100644
--- a/themes/hexo/components/Header.js
+++ b/themes/hexo/components/Header.js
@@ -107,7 +107,7 @@ const Header = props => {
       }}
     >
       <div className="absolute flex flex-col h-full items-center justify-center w-full font-sans">
-        <div className='text-4xl md:text-5xl text-white shadow-text'>{siteInfo.title}</div>
+        <div className='text-4xl md:text-5xl text-white shadow-text'>{siteInfo?.title}</div>
         <div className='mt-2 h-12 items-center text-center shadow-text text-white text-lg'>
           <span id='typed'/>
         </div>