diff --git a/themes/example/LayoutArchive.js b/themes/example/LayoutArchive.js
index 1b3d1e34..a8bc68ee 100644
--- a/themes/example/LayoutArchive.js
+++ b/themes/example/LayoutArchive.js
@@ -7,15 +7,15 @@ export const LayoutArchive = props => {
   const postsSortByDate = Object.create(posts)
 
   postsSortByDate.sort((a, b) => {
-    const dateA = new Date(a?.date.start_date || a.createdTime)
-    const dateB = new Date(b?.date.start_date || b.createdTime)
+    const dateA = new Date(a?.date?.start_date || a.createdTime)
+    const dateB = new Date(b?.date?.start_date || b.createdTime)
     return dateB - dateA
   })
 
   const archivePosts = {}
 
   postsSortByDate.forEach(post => {
-    const date = post.date.start_date.slice(0, 7)
+    const date = post.date?.start_date.slice(0, 7)
     if (archivePosts[date]) {
       archivePosts[date].push(post)
     } else {
@@ -39,7 +39,7 @@ export const LayoutArchive = props => {
                 >
                   <div id={post?.date?.start_date}>
                     <span className="text-gray-400">
-                      {post.date.start_date}
+                      {post.date?.start_date}
                     </span>{' '}
                     &nbsp;
                     <Link
diff --git a/themes/fukasawa/LayoutArchive.js b/themes/fukasawa/LayoutArchive.js
index 62128ec6..a63f6060 100644
--- a/themes/fukasawa/LayoutArchive.js
+++ b/themes/fukasawa/LayoutArchive.js
@@ -9,14 +9,14 @@ export const LayoutArchive = (props) => {
 
   // 时间排序
   postsSortByDate.sort((a, b) => {
-    const dateA = new Date(a?.date.start_date || a.createdTime)
-    const dateB = new Date(b?.date.start_date || b.createdTime)
+    const dateA = new Date(a?.date?.start_date || a.createdTime)
+    const dateB = new Date(b?.date?.start_date || b.createdTime)
     return dateB - dateA
   })
   const archivePosts = {}
 
   postsSortByDate.forEach(post => {
-    const date = post.date.start_date.slice(0, 7)
+    const date = post.date?.start_date.slice(0, 7)
     if (archivePosts[date]) {
       archivePosts[date].push(post)
     } else {
diff --git a/themes/fukasawa/components/BlogPostArchive.js b/themes/fukasawa/components/BlogPostArchive.js
index 90bc400a..a5f9e286 100644
--- a/themes/fukasawa/components/BlogPostArchive.js
+++ b/themes/fukasawa/components/BlogPostArchive.js
@@ -27,7 +27,7 @@ const BlogArchiveItem = ({ posts = [], archiveTitle }) => {
               className="border-l-2 p-1 text-xs md:text-base items-center  hover:scale-x-105 hover:border-gray-500 dark:hover:border-gray-300 dark:border-gray-400 transform duration-500"
             >
               <div id={post?.date?.start_date}>
-                <span className="text-gray-400">{post.date.start_date}</span>{' '}
+                <span className="text-gray-400">{post.date?.start_date}</span>{' '}
                 &nbsp;
                 <Link href={`${BLOG.SUB_PATH}/article/${post.slug}`} passHref>
                   <a className="dark:text-gray-400  dark:hover:text-gray-300 overflow-x-hidden hover:underline cursor-pointer text-gray-600">
diff --git a/themes/hexo/LayoutArchive.js b/themes/hexo/LayoutArchive.js
index ed0e97fe..5f30f76e 100644
--- a/themes/hexo/LayoutArchive.js
+++ b/themes/hexo/LayoutArchive.js
@@ -10,15 +10,15 @@ export const LayoutArchive = (props) => {
 
   // 时间排序
   postsSortByDate.sort((a, b) => {
-    const dateA = new Date(a?.date.start_date || a.createdTime)
-    const dateB = new Date(b?.date.start_date || b.createdTime)
+    const dateA = new Date(a?.date?.start_date || a.createdTime)
+    const dateB = new Date(b?.date?.start_date || b.createdTime)
     return dateB - dateA
   })
 
   const archivePosts = {}
 
   postsSortByDate.forEach(post => {
-    const date = post.date.start_date.slice(0, 7)
+    const date = post.date?.start_date.slice(0, 7)
     if (archivePosts[date]) {
       archivePosts[date].push(post)
     } else {
diff --git a/themes/hexo/components/BlogPostArchive.js b/themes/hexo/components/BlogPostArchive.js
index f7d06014..b7e55b3e 100644
--- a/themes/hexo/components/BlogPostArchive.js
+++ b/themes/hexo/components/BlogPostArchive.js
@@ -27,7 +27,7 @@ const BlogPostArchive = ({ posts = [], archiveTitle }) => {
               className="border-l-2 p-1 text-xs md:text-base items-center  hover:scale-x-105 hover:border-indigo-500 dark:hover:border-indigo-300 dark:border-indigo-400 transform duration-500"
             >
               <div id={post?.date?.start_date}>
-                <span className="text-gray-400">{post.date.start_date}</span>{' '}
+                <span className="text-gray-400">{post.date?.start_date}</span>{' '}
                 &nbsp;
                 <Link href={`${BLOG.SUB_PATH}/article/${post.slug}`} passHref>
                   <a className="dark:text-gray-400  dark:hover:text-indigo-300 overflow-x-hidden hover:underline cursor-pointer text-gray-600">
diff --git a/themes/hexo/components/BlogPostCard.js b/themes/hexo/components/BlogPostCard.js
index a11af155..22dbe428 100644
--- a/themes/hexo/components/BlogPostCard.js
+++ b/themes/hexo/components/BlogPostCard.js
@@ -33,7 +33,7 @@ const BlogPostCard = ({ post, showSummary }) => {
             >
               <a className="font-light hover:underline cursor-pointer text-sm leading-4 mr-3">
                 <i className="far fa-calendar-alt mr-1" />
-                {post.date.start_date}
+                {post.date?.start_date}
               </a>
             </Link>
           </div>
diff --git a/themes/medium/LayoutArchive.js b/themes/medium/LayoutArchive.js
index 9edb9c24..487734ba 100644
--- a/themes/medium/LayoutArchive.js
+++ b/themes/medium/LayoutArchive.js
@@ -7,15 +7,15 @@ export const LayoutArchive = props => {
   const postsSortByDate = Object.create(posts)
 
   postsSortByDate.sort((a, b) => {
-    const dateA = new Date(a?.date.start_date || a.createdTime)
-    const dateB = new Date(b?.date.start_date || b.createdTime)
+    const dateA = new Date(a?.date?.start_date || a.createdTime)
+    const dateB = new Date(b?.date?.start_date || b.createdTime)
     return dateB - dateA
   })
 
   const archivePosts = {}
 
   postsSortByDate.forEach(post => {
-    const date = post.date.start_date.slice(0, 7)
+    const date = post.date?.start_date.slice(0, 7)
     if (archivePosts[date]) {
       archivePosts[date].push(post)
     } else {
@@ -41,7 +41,7 @@ export const LayoutArchive = props => {
                 >
                   <div id={post?.date?.start_date}>
                     <span className="text-gray-400">
-                      {post.date.start_date}
+                      {post.date?.start_date}
                     </span>{' '}
                     &nbsp;
                     <Link
diff --git a/themes/medium/components/BlogPostCard.js b/themes/medium/components/BlogPostCard.js
index b1ac3072..f4edc4e2 100644
--- a/themes/medium/components/BlogPostCard.js
+++ b/themes/medium/components/BlogPostCard.js
@@ -31,7 +31,7 @@ const BlogPostCard = ({ post, showSummary }) => {
             'flex mt-2 items-center justify-start flex-wrap space-x-3 text-gray-400'
           }
         >
-          <div className="text-sm py-1">{post.date.start_date}</div>
+          <div className="text-sm py-1">{post.date?.start_date}</div>
           {CONFIG_MEDIUM.POST_LIST_CATEGORY && (
             <CategoryItem category={post.category} />
           )}
diff --git a/themes/next/LayoutArchive.js b/themes/next/LayoutArchive.js
index 1b322fd0..ce66e25f 100644
--- a/themes/next/LayoutArchive.js
+++ b/themes/next/LayoutArchive.js
@@ -9,15 +9,15 @@ export const LayoutArchive = (props) => {
 
   // 时间排序
   postsSortByDate.sort((a, b) => {
-    const dateA = new Date(a?.date.start_date || a.createdTime)
-    const dateB = new Date(b?.date.start_date || b.createdTime)
+    const dateA = new Date(a?.date?.start_date || a.createdTime)
+    const dateB = new Date(b?.date?.start_date || b.createdTime)
     return dateB - dateA
   })
 
   const archivePosts = {}
 
   postsSortByDate.forEach(post => {
-    const date = post.date.start_date.slice(0, 7)
+    const date = post.date?.start_date.slice(0, 7)
     if (archivePosts[date]) {
       archivePosts[date].push(post)
     } else {
diff --git a/themes/next/components/BlogPostArchive.js b/themes/next/components/BlogPostArchive.js
index 0ef8ee86..d2d6f857 100644
--- a/themes/next/components/BlogPostArchive.js
+++ b/themes/next/components/BlogPostArchive.js
@@ -27,7 +27,7 @@ const BlogPostArchive = ({ posts = [], archiveTitle }) => {
               className="border-l-2 p-1 text-xs md:text-base items-center  hover:scale-x-105 hover:border-gray-500 dark:hover:border-gray-300 dark:border-gray-400 transform duration-500"
             >
               <div id={post?.date?.start_date}>
-                <span className="text-gray-400">{post.date.start_date}</span>{' '}
+                <span className="text-gray-400">{post.date?.start_date}</span>{' '}
                 &nbsp;
                 <Link href={`${BLOG.SUB_PATH}/article/${post.slug}`} passHref>
                   <a className="dark:text-gray-400  dark:hover:text-gray-300 overflow-x-hidden hover:underline cursor-pointer text-gray-600">
diff --git a/themes/next/components/BlogPostCard.js b/themes/next/components/BlogPostCard.js
index 382a7cf3..ae2b0b16 100644
--- a/themes/next/components/BlogPostCard.js
+++ b/themes/next/components/BlogPostCard.js
@@ -48,7 +48,7 @@ const BlogPostCard = ({ post, showSummary }) => {
                 passHref
               >
                 <a className="font-light hover:underline cursor-pointer text-sm leading-4 mr-3">
-                  {post.date.start_date}
+                  {post.date?.start_date}
                 </a>
               </Link>
             </div>