diff --git a/plugin/xapi/README.md b/plugin/xapi/README.md
index c39b1ce59e..6d2f5f7e20 100644
--- a/plugin/xapi/README.md
+++ b/plugin/xapi/README.md
@@ -77,7 +77,6 @@ To update, execute this queries:
 CREATE TABLE xapi_internal_log (id INT AUTO_INCREMENT NOT NULL, user_id INT DEFAULT NULL, statement_id VARCHAR(255) NOT NULL, verb VARCHAR(255) NOT NULL, object_id VARCHAR(255) NOT NULL, activity_name VARCHAR(255) DEFAULT NULL, activity_description VARCHAR(255) DEFAULT NULL, score_scaled DOUBLE PRECISION DEFAULT NULL, score_raw DOUBLE PRECISION DEFAULT NULL, score_min DOUBLE PRECISION DEFAULT NULL, score_max DOUBLE PRECISION DEFAULT NULL, created_at DATETIME DEFAULT NULL, INDEX IDX_C1C667ACA76ED395 (user_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8 COLLATE `utf8_unicode_ci` ENGINE = InnoDB;
 ALTER TABLE xapi_internal_log ADD CONSTRAINT FK_C1C667ACA76ED395 FOREIGN KEY (user_id) REFERENCES user (id);
 ```
-- asda
 
 **From 0.3 (beta) [2021-11-11]**
 
@@ -86,4 +85,6 @@ ALTER TABLE xapi_internal_log ADD CONSTRAINT FK_C1C667ACA76ED395 FOREIGN KEY (us
 ALTER TABLE xapi_internal_log ADD CONSTRAINT FK_C1C667ACA76ED395 FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE;
 ALTER TABLE xapi_tool_launch ADD CONSTRAINT FK_E18CB58391D79BD3 FOREIGN KEY (c_id) REFERENCES course (id) ON DELETE CASCADE;
 ALTER TABLE xapi_tool_launch ADD CONSTRAINT FK_E18CB583613FECDF FOREIGN KEY (session_id) REFERENCES session (id) ON DELETE CASCADE;
+
+ALTER TABLE xapi_internal_log CHANGE statement_id statement_id varchar(255) NULL;
 ```
diff --git a/plugin/xapi/src/Entity/InternalLog.php b/plugin/xapi/src/Entity/InternalLog.php
index b9c807f94d..9130361b4d 100644
--- a/plugin/xapi/src/Entity/InternalLog.php
+++ b/plugin/xapi/src/Entity/InternalLog.php
@@ -30,7 +30,7 @@ class InternalLog
     /**
      * @var string
      *
-     * @ORM\Column(name="statement_id", type="string")
+     * @ORM\Column(name="statement_id", type="string", nullable=true)
      */
     private $statementId;
     /**
@@ -105,12 +105,12 @@ class InternalLog
         return $this;
     }
 
-    public function getStatementId(): string
+    public function getStatementId(): ?string
     {
         return $this->statementId;
     }
 
-    public function setStatementId(string $statementId): InternalLog
+    public function setStatementId(?string $statementId): InternalLog
     {
         $this->statementId = $statementId;
 
diff --git a/plugin/xapi/src/Lrs/Utils/InternalLogUtil.php b/plugin/xapi/src/Lrs/Utils/InternalLogUtil.php
index 95b6d832c9..dc9a1cbcd1 100644
--- a/plugin/xapi/src/Lrs/Utils/InternalLogUtil.php
+++ b/plugin/xapi/src/Lrs/Utils/InternalLogUtil.php
@@ -22,23 +22,24 @@ class InternalLogUtil
             return;
         }
 
-        $internalLog = new InternalLog();
-        $internalLog->setUser($user);
-
-        $languageIso = api_get_language_isocode();
-
-        $internalLog->setVerb(
-            XApiPlugin::extractVerbInLanguage($statement->getVerb()->getDisplay(), $languageIso)
-        );
-
         $statementObject = $statement->getObject();
 
         if (!$statementObject instanceof Activity) {
             return;
         }
 
-        $internalLog->setObjectId($statementObject->getId()->getValue());
-        $internalLog->setStatementId($statement->getId()->getValue());
+        $languageIso = api_get_language_isocode();
+        $statementVerbString = XApiPlugin::extractVerbInLanguage($statement->getVerb()->getDisplay(), $languageIso);
+
+        $internalLog = new InternalLog();
+        $internalLog
+            ->setUser($user)
+            ->setVerb($statementVerbString)
+            ->setObjectId($statementObject->getId()->getValue());
+
+        if (null !== $statementId = $statement->getId()) {
+            $internalLog->setStatementId($statementId->getValue());
+        }
 
         if (null !== $definition = $statementObject->getDefinition()) {
             if (null !== $nameInLanguages = $definition->getName()) {
@@ -81,7 +82,7 @@ class InternalLogUtil
         $em->flush();
     }
 
-    private static function getUserFromActor(Actor $actor)
+    private static function getUserFromActor(Actor $actor): ?object
     {
         if (!$actor instanceof Agent) {
             return null;