diff --git a/extension/Classes/Core/Store/Sip.php b/extension/Classes/Core/Store/Sip.php
index 8620857b942e05a20e75600e761a84a98eac4335..6f745086a1d0787032cfcd18b6b4a1d0bd284fc4 100644
--- a/extension/Classes/Core/Store/Sip.php
+++ b/extension/Classes/Core/Store/Sip.php
@@ -335,6 +335,8 @@ class Sip {
      */
     public function getVarsFromSip($s) {
 
+        static $exceptionAlreadyThrown = false;
+
         # Check if parameter is manipulated
         if (strlen($s) != SIP_TOKEN_LENGTH) {
             Config::attackDetectedExitNow(array(), 'Invalid SIP token length: ' . strlen($s) . " _GET['s']=" . htmlentities($s));
@@ -347,6 +349,12 @@ class Sip {
         $sessionVar = Session::get($s);
 
         if ($sessionVar === false) {
+
+            if ($exceptionAlreadyThrown) {
+                // There is already an exception throw for Store SIP: just return an empty array and do not throw a new exception.
+                return array();
+            }
+            $exceptionAlreadyThrown = true;
             throw new \UserFormException("SIP '$s' not registered - please reload the previous site and try again.", ERROR_SIP_NOT_FOUND);
         }