diff --git a/plugins/CoreAdminHome/API.php b/plugins/CoreAdminHome/API.php
index 5db05880719b99c0158962de6649607e69675008..f1e0058768ba0a80cada689bb488235779b12c55 100644
--- a/plugins/CoreAdminHome/API.php
+++ b/plugins/CoreAdminHome/API.php
@@ -168,7 +168,7 @@ class API extends \Piwik\Plugin\API
                 " AND idsite IN (" . implode(",", $idSites) . ")";
             Db::query($query, $bind);
         }
-        \Piwik\Plugins\SitesManager\API::updateSiteCreatedTime($idSites, $minDate);
+        \Piwik\Plugins\SitesManager\API::getInstance()->updateSiteCreatedTime($idSites, $minDate);
 
         // Force to re-process data for these websites in the next archive.php cron run
         $invalidatedIdSites = self::getWebsiteIdsToInvalidate();
diff --git a/tests/PHPUnit/Integration/AnnotationsTest.php b/tests/PHPUnit/Integration/AnnotationsTest.php
index 1692c269028eca9e54d55d30ca8962fec5ed7de0..478fca650481fba668714848e72db27bd1a6f09a 100755
--- a/tests/PHPUnit/Integration/AnnotationsTest.php
+++ b/tests/PHPUnit/Integration/AnnotationsTest.php
@@ -308,7 +308,8 @@ class AnnotationsTest extends IntegrationTestCase
             }
         } else {
             $request = new Request($request);
-            $request->process();
+            $response = $request->process();
+            $this->checkRequestResponse($response);
         }
     }
 }
diff --git a/tests/PHPUnit/Integration/AutoSuggestAPITest.php b/tests/PHPUnit/Integration/AutoSuggestAPITest.php
index 612198140f84a6d72fd4f1bd38752ef2cb225cc6..e940980e66809307fe0f1cde55a76722d89b8743 100644
--- a/tests/PHPUnit/Integration/AutoSuggestAPITest.php
+++ b/tests/PHPUnit/Integration/AutoSuggestAPITest.php
@@ -82,6 +82,7 @@ class Test_Piwik_Integration_AutoSuggestAPITest extends IntegrationTestCase
                 . '&format=php&serialize=0'
         );
         $response = $request->process();
+        $this->checkRequestResponse($response);
         $topSegmentValue = @$response[0];
 
         if ($topSegmentValue !== false && !is_null($topSegmentValue)) {
diff --git a/tests/PHPUnit/Integration/VisitsInPast_InvalidateOldReportsTest.php b/tests/PHPUnit/Integration/VisitsInPast_InvalidateOldReportsTest.php
index 7a64f6212cf778392818da5f889a58e96b4d8fe1..511b638ea0ac156f39ccc094e5df5fca8fa8fc98 100644
--- a/tests/PHPUnit/Integration/VisitsInPast_InvalidateOldReportsTest.php
+++ b/tests/PHPUnit/Integration/VisitsInPast_InvalidateOldReportsTest.php
@@ -69,16 +69,30 @@ class Test_Piwik_Integration_VisitsInPast_InvalidateOldReports extends Integrati
         // 1) Invalidate old reports for the 2 websites
         // Test invalidate 1 date only
         $r = new Request("module=API&method=CoreAdminHome.invalidateArchivedReports&idSites=4,5,6,55,-1,s',1&dates=2010-01-03");
-        ($r->process());
+        $this->checkRequestResponse($r->process());
+
         // Test invalidate comma separated dates
         $r = new Request("module=API&method=CoreAdminHome.invalidateArchivedReports&idSites=" . $idSite . "," . $idSite2 . "&dates=2010-01-06,2009-10-30");
-        ($r->process());
+        $this->checkRequestResponse($r->process());
+
         // test invalidate date in the past
-        $r = new Request("module=API&method=CoreAdminHome.invalidateArchivedReports&idSites=" . $idSite2 . "&dates=2009-06-29");
-        ($r->process());
+        // Format=original will re-throw exception
+        $r = new Request("module=API&method=CoreAdminHome.invalidateArchivedReports&idSites=" . $idSite2 . "&dates=2009-06-29&format=original");
+        $this->checkRequestResponse( json_encode( $r->process() ) );
+
         // invalidate a date more recent to check the date is only updated when it's earlier than current
         $r = new Request("module=API&method=CoreAdminHome.invalidateArchivedReports&idSites=" . $idSite2 . "&dates=2010-03-03");
-        ($r->process());
+        $this->checkRequestResponse($r->process());
+
+        // Make an invalid call
+        $idSiteNoAccess = 777;
+        try {
+            $request = new Request("module=API&method=CoreAdminHome.invalidateArchivedReports&idSites=" . $idSiteNoAccess . "&dates=2010-03-03&format=original");
+            $request->process();
+            $this->fail();
+        } catch(Exception $e) {
+        }
+
 
         // 2) Call API again, with an older date, which should now return data
         $this->runApiTests($api, $params);
diff --git a/tests/PHPUnit/IntegrationTestCase.php b/tests/PHPUnit/IntegrationTestCase.php
index aee48153ade838165a37dcda412ce2d0cca053dd..2c2a3c9c418cf1990de14401551c2ecda9fd96c1 100755
--- a/tests/PHPUnit/IntegrationTestCase.php
+++ b/tests/PHPUnit/IntegrationTestCase.php
@@ -549,6 +549,8 @@ abstract class IntegrationTestCase extends PHPUnit_Framework_TestCase
 
                         // find first row w/ subtable
                         $content = $request->process();
+
+                        $this->checkRequestResponse($content);
                         foreach ($content as $row) {
                             if (isset($row['idsubdatatable'])) {
                                 $parametersToSet['idSubtable'] = $row['idsubdatatable'];
@@ -717,6 +719,7 @@ abstract class IntegrationTestCase extends PHPUnit_Framework_TestCase
         // with format=original, objects or php arrays can be returned.
         // we also hide errors to prevent the 'headers already sent' in the ResponseBuilder (which sends Excel headers multiple times eg.)
         $response = (string)$request->process();
+        $this->checkRequestResponse($response);
 
         if ($isLiveMustDeleteDates) {
             $response = $this->removeAllLiveDatesFromXml($response);
@@ -820,6 +823,12 @@ abstract class IntegrationTestCase extends PHPUnit_Framework_TestCase
         }
     }
 
+    protected function checkRequestResponse($response)
+    {
+        $this->assertTrue(stripos($response, 'error') === false);
+        $this->assertTrue(stripos($response, 'exception') === false);
+    }
+
     protected function removeAllLiveDatesFromXml($input)
     {
         $toRemove = array(