diff --git a/module/execution/model.php b/module/execution/model.php
index 1b69ecc997..a77ee4f8ac 100644
--- a/module/execution/model.php
+++ b/module/execution/model.php
@@ -724,6 +724,9 @@ class executionModel extends model
             ->checkIF($execution->realBegan != '', 'realBegan', 'le', helper::today())
             ->where('id')->eq((int)$executionID)
             ->exec();
+
+        /* When it has multiple errors, only the first one is prompted */
+        if(dao::isError() and count(dao::$errors['realBegan']) > 1) dao::$errors['realBegan'] = dao::$errors['realBegan'][0];
         
         if(!dao::isError()) return common::createChanges($oldExecution, $execution);
     }
@@ -880,7 +883,10 @@ class executionModel extends model
             ->checkIF($execution->realEnd != '', 'realEnd', 'ge', $oldExecution->realBegan)
             ->where('id')->eq((int)$executionID)
             ->exec();
-        
+
+        /* When it has multiple errors, only the first one is prompted */
+        if(dao::isError() and count(dao::$errors['realEnd']) > 1) dao::$errors['realEnd'] = dao::$errors['realEnd'][0];
+
         if(!dao::isError())
         {
             $this->loadModel('score')->create('execution', 'close', $oldExecution);
diff --git a/module/project/model.php b/module/project/model.php
index 95759db58d..21a5d7a2e9 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -1186,6 +1186,9 @@ class projectModel extends model
             ->where('id')->eq((int)$projectID)
             ->exec();
 
+        /* When it has multiple errors, only the first one is prompted */
+        if(dao::isError() and count(dao::$errors['realBegan']) > 1) dao::$errors['realBegan'] = dao::$errors['realBegan'][0];
+
         if(!dao::isError()) return common::createChanges($oldProject, $project);
     }
 
@@ -1338,6 +1341,9 @@ class projectModel extends model
             ->where('id')->eq((int)$projectID)
             ->exec();
 
+        /* When it has multiple errors, only the first one is prompted */
+        if(dao::isError() and count(dao::$errors['realEnd']) > 1) dao::$errors['realEnd'] = dao::$errors['realEnd'][0];
+
         if(!dao::isError())
         {
             $this->loadModel('score')->create('project', 'close', $oldProject);