Patch recoverable error

[richardhj]

I encountered a recoverable error when trying to send a newsletter.

Recoverable error: Argument 2 passed to Avisota\Contao\SubscriptionRecipient\RecipientSource\RecipientsRecipientSourceFactory::parseRecipientsUnsubscribePage() must be an instance of Avisota\Contao\SubscriptionRecipient\RecipientSource\RecipientsRecipientSource, instance of Avisota\Contao\Salutation\SalutationRecipientSource given, called in /home/www/composer/vendor/avisota/contao-subscription-recipient/src/RecipientSource/RecipientsRecipientSourceFactory.php on line 54 and defined in composer/vendor/avisota/contao-subscription-recipient/src/RecipientSource/RecipientsRecipientSourceFactory.php on line 107
#0 composer/vendor/avisota/contao-subscription-recipient/src/RecipientSource/RecipientsRecipientSourceFactory.php(107): __error(4096, 'Argument 2 pass...', '/home/w...', 107, Array)
#1 composer/vendor/avisota/contao-subscription-recipient/src/RecipientSource/RecipientsRecipientSourceFactory.php(54): Avisota\Contao\SubscriptionRecipient\RecipientSource\RecipientsRecipientSourceFactory->parseRecipientsUnsubscribePage(Object(Avisota\Contao\Entity\RecipientSource), Object(Avisota\Contao\Salutation\SalutationRecipientSource))
#2 composer/vendor/avisota/contao-core/src/ServiceFactory.php(243): Avisota\Contao\SubscriptionRecipient\RecipientSource\RecipientsRecipientSourceFactory->createRecipientSource(Object(Avisota\Contao\Entity\RecipientSource))
#3 composer/vendor/avisota/contao-core/src/ServiceFactory.php(95): Avisota\Contao\Core\ServiceFactory->createRecipientSource(Object(Avisota\Contao\Entity\RecipientSource))
#4 composer/vendor/pimple/pimple/lib/Pimple.php(126): Avisota\Contao\Core\ServiceFactory->Avisota\Contao\Core\{closure}(Object(Pimple))
#5 composer/vendor/pimple/pimple/lib/Pimple.php(83): Pimple::{closure}(Object(Pimple))
#6 composer/vendor/avisota/contao-message/src/Send/SendImmediateModule.php(61): Pimple->offsetGet('avisota.recipie...')
#7 composer/vendor/avisota/contao-message/src/Backend/Preview.php(109): Avisota\Contao\Message\Core\Send\SendImmediateModule->run(Object(Avisota\Contao\Entity\Message))
#8 composer/vendor/avisota/contao-message/src/Backend/Preview.php(60): Avisota\Contao\Message\Core\Backend\Preview->renderPreviewView(Object(ContaoCommunityAlliance\DcGeneral\DefaultEnvironment))
#9 [internal function]: Avisota\Contao\Message\Core\Backend\Preview->handleAction(Object(ContaoCommunityAlliance\DcGeneral\Event\ActionEvent), 'dc-general.acti...', Object(Symfony\Component\EventDispatcher\EventDispatcher))
#10 composer/vendor/symfony/event-dispatcher/EventDispatcher.php(184): call_user_func(Array, Object(ContaoCommunityAlliance\DcGeneral\Event\ActionEvent), 'dc-general.acti...', Object(Symfony\Component\EventDispatcher\EventDispatcher))
#11 composer/vendor/symfony/event-dispatcher/EventDispatcher.php(46): Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(Array, 'dc-general.acti...', Object(ContaoCommunityAlliance\DcGeneral\Event\ActionEvent))
#12 composer/vendor/contao-community-alliance/dc-general/src/ContaoCommunityAlliance/DcGeneral/Controller/DefaultController.php(153): Symfony\Component\EventDispatcher\EventDispatcher->dispatch('dc-general.acti...', Object(ContaoCommunityAlliance\DcGeneral\Event\ActionEvent))
#13 composer/vendor/contao-community-alliance/dc-general/src/ContaoCommunityAlliance/DcGeneral/DC/General.php(286): ContaoCommunityAlliance\DcGeneral\Controller\DefaultController->handle(Object(ContaoCommunityAlliance\DcGeneral\Action))
#14 system/modules/core/classes/Backend.php(650): ContaoCommunityAlliance\DcGeneral\DC_General->__call('preview', Array)
#15 system/modules/core/classes/Backend.php(650): DC_General->preview()
#16 system/modules/core/controllers/BackendMain.php(131): Contao\Backend->getBackendModule('avisota_newslet...')
#17 contao/main.php(20): Contao\BackendMain->run()
#18 {main}