diff --git a/application/helpers/admin/activate_helper.php b/application/helpers/admin/activate_helper.php
index ffc3f127ba1..c0f84f4d8d2 100644
--- a/application/helpers/admin/activate_helper.php
+++ b/application/helpers/admin/activate_helper.php
@@ -26,7 +26,7 @@ function fixNumbering($fixnumbering, $iSurveyID)
     LimeExpressionManager::RevertUpgradeConditionsToRelevance($iSurveyID);
     //Fix a question id - requires renumbering a question
     $oldqid = (int) $fixnumbering;
-    $lastqid=Questions::model()->getMaxId('qid', true); // Always refresh as we insert new qid's
+    $lastqid=Question::model()->getMaxId('qid', true); // Always refresh as we insert new qid's
     $newqid=$lastqid+1;
 
     // Not sure we can do this in MSSQL ?
diff --git a/application/helpers/admin/import_helper.php b/application/helpers/admin/import_helper.php
index e07a3662332..9b7c03a4ed5 100644
--- a/application/helpers/admin/import_helper.php
+++ b/application/helpers/admin/import_helper.php
@@ -2948,7 +2948,7 @@ function CSVImportSurvey($sFullFilepath,$iDesiredSurveyId=NULL,$bTranslateLinks=
                         if ($qtypes[$questionrowdata['type']]['subquestions']<2)
                         {
                             $aInsertData=array('qid'=>$aQIDReplacements[$oldqid],'code'=>$labelrow['code'],'answer'=>$labelrow['title'],'sortorder'=>$labelrow['sortorder'],'language'=>$labelrow['language'],'assessment_value'=>$labelrow['assessment_value']);
-                            Answers::model()->insertRecords($aInsertData) or safeDie($clang->gT("Error").": Failed to insert data [4]<br />");
+                            Answer::model()->insertRecords($aInsertData) or safeDie($clang->gT("Error").": Failed to insert data [4]<br />");
                         }
                         else
                         {
@@ -3148,7 +3148,7 @@ function CSVImportSurvey($sFullFilepath,$iDesiredSurveyId=NULL,$bTranslateLinks=
             $asrowdata["sid"]=$iNewSID;
             unset($asrowdata["id"]);
 
-            $result=Assessments::model()->insertRecords($asrowdata) or safeDie("Couldn't insert assessment<br />");
+            $result=Assessment::model()->insertRecords($asrowdata) or safeDie("Couldn't insert assessment<br />");
 
             unset($newgid);
         }
diff --git a/application/helpers/admin/statistics_helper.php b/application/helpers/admin/statistics_helper.php
index 3d90f2de3fd..bf5076d000b 100644
--- a/application/helpers/admin/statistics_helper.php
+++ b/application/helpers/admin/statistics_helper.php
@@ -723,7 +723,7 @@ protected function buildOutputList($rt, $language, $surveyid, $outputType, $sql,
             $qaid=$aQuestionInfo['aid'];
 
             //get question data
-            $nresult = Questions::model()->find('language=:language AND parent_qid=0 AND qid=:qid', array(':language'=>$language, ':qid'=>$qqid));
+            $nresult = Question::model()->find('language=:language AND parent_qid=0 AND qid=:qid', array(':language'=>$language, ':qid'=>$qqid));
             $qtitle=$nresult->title;
             $qtype=$nresult->type;
             $qquestion=flattenText($nresult->question);