Loading Amazon Creator API SDK into module

SDK: https://affiliate-program.amazon.com/creatorsapi/docs/en-us/get-started/...

I work on porting this contrib: https://www.drupal.org/project/amazon_pa

• Amazon has an official SDK for its api. 
• I loaded the sdk into my module and it works so far.
• The SDK uses own stuff installed by composer

Loading is simple:

  $lib_path = __DIR__ . '/amazon_sdk/creatorsapi-php-sdk/vendor/autoload.php';
  if (file_exists($lib_path)) {
    require_once $lib_path;
  }

When i visit the "drupal status report page" and on "page saving settings" and on some other pages the site will full crash. 

Without the SDK in place it works. I am pretty sure that this is again because of the SDK using own libs that kind of get into problems with drupals /vendor

The sdk has this structure, and also loads somy synfony components

https://imgur.com/wK3cNbA

Any ideas on how i could handle that.

LOG:

PHP Fatal error:  Declaration of Drupal\\Core\\Update\\UpdateRegistry::getSubscribedEvents() must be compatible with Symfony\\Component\\EventDispatcher\\EventSubscriberInterface::getSubscribedEvents(): array in /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/Update/UpdateRegistry.php on line 385\nStack trace:\n#0 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/vendor/composer/ClassLoader.php(576): include()\n#1 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/vendor/composer/ClassLoader.php(427): {closure:Composer\\Autoload\\ClassLoader::initializeIncludeClosure():575}()\n#2 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Component/DependencyInjection/Container.php(261): Composer\\Autoload\\ClassLoader->loadClass()\n#3 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Component/DependencyInjection/Container.php(179): Drupal\\Component\\DependencyInjection\\Container->createService()\n#4 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal.php(195): Drupal\\Component\\DependencyInjection\\Container->get()\n#5 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/modules/system/system.install(941): Drupal::service()\n#6 [internal function]: system_requirements()\n#7 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(416): call_user_func_array()\n#8 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(395): Drupal\\Core\\Extension\\ModuleHandler->{closure:Drupal\\Core\\Extension\\ModuleHandler::invokeAll():415}()\n#9 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(415): Drupal\\Core\\Extension\\ModuleHandler->invokeAllWith()\n#10 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/modules/system/src/SystemManager.php(109): Drupal\\Core\\Extension\\ModuleHandler->invokeAll()\n#11 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/modules/system/src/Controller/SystemInfoController.php(53): Drupal\\system\\SystemManager->listRequirements()\n#12 [internal function]: Drupal\\system\\Controller\\SystemInfoController->status()\n#13 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array()\n#14 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/Render/Renderer.php(637): Drupal\\Core\\EventSubscriber\\EarlyRenderingControllerWrapperSubscriber->{closure:Drupal\\Core\\EventSubscriber\\EarlyRenderingControllerWrapperSubscriber::wrapControllerExecutionInRenderContext():121}()\n#15 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(121): Drupal\\Core\\Render\\Renderer->executeInRenderContext()\n#16 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\\Core\\EventSubscriber\\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext()\n#17 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/vendor/symfony/http-kernel/HttpKernel.php(181): Drupal\\Core\\EventSubscriber\\EarlyRenderingControllerWrapperSubscriber->{closure:Drupal\\Core\\EventSubscriber\\EarlyRenderingControllerWrapperSubscriber::onController():96}()\n#18 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/vendor/symfony/http-kernel/HttpKernel.php(76): Symfony\\Component\\HttpKernel\\HttpKernel->handleRaw()\n#19 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/StackMiddleware/Session.php(53): Symfony\\Component\\HttpKernel\\HttpKernel->handle()\n#20 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\\Core\\StackMiddleware\\Session->handle()\n#21 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/StackMiddleware/ContentLength.php(28): Drupal\\Core\\StackMiddleware\\KernelPreHandle->handle()\n#22 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/modules/big_pipe/src/StackMiddleware/ContentLength.php(32): Drupal\\Core\\StackMiddleware\\ContentLength->handle()\n#23 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(116): Drupal\\big_pipe\\StackMiddleware\\ContentLength->handle()\n#24 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(90): Drupal\\page_cache\\StackMiddleware\\PageCache->pass()\n#25 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\\page_cache\\StackMiddleware\\PageCache->handle()\n#26 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\\Core\\StackMiddleware\\ReverseProxyMiddleware->handle()\n#27 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/StackMiddleware/AjaxPageState.php(36): Drupal\\Core\\StackMiddleware\\NegotiationMiddleware->handle()\n#28 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/StackMiddleware/StackedHttpKernel.php(51): Drupal\\Core\\StackMiddleware\\AjaxPageState->handle()\n#29 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/core/lib/Drupal/Core/DrupalKernel.php(741): Drupal\\Core\\StackMiddleware\\StackedHttpKernel->handle()\n#30 /srv/http/WORKSPACE_DRUPAL/EIGENE_PROJEKTE/PRODUCT_DISTRI_D14/web/index.php(19): Drupal\\Core\\DrupalKernel->handle()\n#31 {main},