I ran `make composer`. I submitted a new artifact and got a Fatal error:

( ! ) Fatal error: Uncaught Error: Class 'Laminas\Stdlib\StringUtils' not found in /usr/share/tuleap/src/vendor/laminas/laminas-validator/src/Hostname.php on line 2001( ! ) Error: Class 'Laminas\Stdlib\StringUtils' not found in /usr/share/tuleap/src/vendor/laminas/laminas-validator/src/Hostname.php on line 2001Call Stack#TimeMemoryFunctionLocation10.0002416488{main}( ).../index.php:020.02453028648Tuleap\Request\FrontRouter->route( ).../index.php:4930.02783253800Tuleap\Request\FrontRouter->routeHandler( ).../FrontRouter.php:11040.04964453440Tuleap\Tracker\TrackerPluginDefaultController->process( ).../FrontRouter.php:25050.04964453472TrackerManager->process( ).../TrackerPluginDefaultController.php:4560.04974453512TrackerManager->processSubElement( ).../TrackerManager.class.php:16070.06125040536Tracker->process( ).../TrackerManager.class.php:14280.06285073456Tracker_Action_CreateArtifact->process( ).../Tracker.class.php:79590.07305685112Tracker_Action_CreateArtifact->processCreate( ).../CreateArtifact.class.php:42100.07305685112Tracker_Action_CreateArtifact->createArtifact( ).../CreateArtifact.class.php:52110.07315686584Tracker_ArtifactFactory->createArtifact( ).../CreateArtifact.class.php:83120.07655748416Tracker_ArtifactCreator->create( ).../Tracker_ArtifactFactory.class.php:383130.11196262976Tracker_ArtifactCreator->createFirstChangesetNoValidation( ).../Tracker_ArtifactCreator.class.php:193140.23747260896Tracker_Artifact_Changeset->executePostCreationActions( ).../Tracker_ArtifactCreator.class.php:153150.24667300328Tuleap\Tracker\Artifact\Changeset\PostCreation\ActionsRunner->executePostCreationActions( ).../Tracker_Artifact_Changeset.class.php:781160.24667300328Tuleap\Tracker\Artifact\Changeset\PostCreation\ActionsRunner->processPostCreationActions( ).../ActionsRunner.php:140170.24667300328Tuleap\Tracker\Artifact\Changeset\PostCreation\EmailNotificationTask->execute( ).../ActionsRunner.php:199180.28627513312Tuleap\Tracker\Artifact\Changeset\PostCreation\MailSender->send( ).../EmailNotificationTask.php:131190.28737527792MailNotificationBuilder->buildAndSendEmail( ).../MailSender.php:111200.28757529008MailBuilder->buildAndSendEmail( ).../MailNotificationBuilder.php:55210.28777529384MailBuilder->buildEmail( ).../MailBuilder.php:57220.29057632384Codendi_Mail->setFrom( ).../MailBuilder.php:68230.29057632496Laminas\Mail\Message->setFrom( ).../Codendi_Mail.class.php:181240.29057632496Laminas\Mail\Message->addFrom( ).../Message.php:118250.29137636624Laminas\Mail\Message->updateAddressList( ).../Message.php:131260.29137636624Laminas\Mail\AddressList->add( ).../Message.php:538270.29137636624Laminas\Mail\AddressList->createAddress( ).../AddressList.php:34280.29177637848Laminas\Mail\Address->__construct( ).../AddressList.php:234290.29287651944Laminas\Validator\EmailAddress->isValid( ).../Address.php:76300.29287652296Laminas\Validator\EmailAddress->validateHostnamePart( ).../EmailAddress.php:540310.29317658600Laminas\Validator\Hostname->isValid( ).../EmailAddress.php:467

Please find the used tracker structure in attachment.