diff --git a/server/app/common.php b/server/app/common.php
index deb4deb0832c031e79452bb6df6f648fdabcfc35..37c71bf19eef6a5c55dd0351426865102b3d5fac 100644
--- a/server/app/common.php
+++ b/server/app/common.php
@@ -208,6 +208,9 @@ function clear_file_domain($content)
  */
 function get_file_domain($content)
 {
+    if (empty($content)){
+        return $content;
+    }
     $preg = '/(<img .*?src=")[^https|^http](.*?)(".*?>)/is';
     $fileUrl = FileService::getFileUrl();
     return preg_replace($preg, "\${1}$fileUrl\${2}\${3}", $content);
diff --git a/server/app/common/lists/BaseDataLists.php b/server/app/common/lists/BaseDataLists.php
index bebf81c2e7e01a37b491fc3057a0bff75a328f7a..ce7839f95b404cd49812ce00c9a4cbf84a0a39fd 100644
--- a/server/app/common/lists/BaseDataLists.php
+++ b/server/app/common/lists/BaseDataLists.php
@@ -120,10 +120,13 @@ abstract class BaseDataLists implements ListsInterface
             return [];
         }
         $startTime = $this->request->get('start_time');
-        $this->startTime = strtotime($startTime);
+        if ($startTime){
+            $this->startTime = strtotime($startTime);
+        }
         $endTime = $this->request->get('end_time');
-        $this->endTime = strtotime($endTime);
-
+        if($endTime){
+            $this->endTime = strtotime($endTime);
+        }
         $this->start = $this->request->get('start');
         $this->end = $this->request->get('end');