Zahlungsarten Modul lässt sich nicht aufrufen

Kann damit jemand was anfangen? SW 5.2.21

<h2><span class="frontend_error_exception">Ups! Ein Fehler ist aufgetreten!</span></h2>
<p>
<span class="frontend_error_exception">Die nachfolgenden Hinweise sollten Ihnen weiterhelfen.</span>
</p>
<h3>The provided CSRF-Token is invalid. If you're sure that the request to path "/backend/Payment?file=app&no-cache=1497900044+1+1" should be valid, the called controller action needs to be whitelisted using the CSRFWhitelistAware interface. in engine/Shopware/Components/CSRFTokenValidator.php on line 108</h3>
<h3>Stack trace:</h3>
<div style="overflow:auto;">
<pre>#0 [internal function]: Shopware\Components\CSRFTokenValidator->checkBackendTokenValidation(Object(Enlight_Controller_ActionEventArgs))
#1 engine/Library/Enlight/Event/Handler/Default.php(91): call_user_func(Array, Object(Enlight_Controller_ActionEventArgs))
#2 engine/Library/Enlight/Event/EventManager.php(214): Enlight_Event_Handler_Default->execute(Object(Enlight_Controller_ActionEventArgs))
#3 engine/Library/Enlight/Controller/Action.php(143): Enlight_Event_EventManager->notify('Enlight_Control...', Object(Enlight_Controller_ActionEventArgs))
#4 engine/Library/Enlight/Controller/Dispatcher/Default.php(523): Enlight_Controller_Action->dispatch('indexAction')
#5 engine/Library/Enlight/Controller/Front.php(223): Enlight_Controller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHttp), Object(Enlight_Controller_Response_ResponseHttp))
#6 engine/Shopware/Kernel.php(180): Enlight_Controller_Front->dispatch()
#7 vendor/symfony/http-kernel/HttpCache/HttpCache.php(491): Shopware\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#8 engine/Shopware/Components/HttpCache/AppCache.php(255): Symfony\Component\HttpKernel\HttpCache\HttpCache->forward(Object(Symfony\Component\HttpFoundation\Request), true, NULL)
#9 vendor/symfony/http-kernel/HttpCache/HttpCache.php(258): Shopware\Components\HttpCache\AppCache->forward(Object(Symfony\Component\HttpFoundation\Request), true)
#10 engine/Shopware/Components/HttpCache/AppCache.php(103): Symfony\Component\HttpKernel\HttpCache\HttpCache->pass(Object(Symfony\Component\HttpFoundation\Request), true)
#11 shopware.php(117): Shopware\Components\HttpCache\AppCache->handle(Object(Symfony\Component\HttpFoundation\Request))
#12 {main}</pre>
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Shopware 5.2.21