PHP Warning when empty filter (JsonApiDefaultsCurrentContext.php)

Warning: Invalid argument supplied for foreach() in Drupal\jsonapi_defaults\JsonApiDefaultsCurrentContext->getJsonApiParameter() (line 30 of /var/www/html/docroot/modules/contrib/jsonapi_defaults/src/JsonApiDefaultsCurrentContext.php) #0 /var/www/html/docroot/core/includes/bootstrap.inc(566): _drupal_error_handler_real(2, 'Invalid argumen...', '/var/www/html/d...', 30, Array) #1 /var/www/html/docroot/modules/contrib/jsonapi_defaults/src/JsonApiDefaultsCurrentContext.php(30): _drupal_error_handler(2, 'Invalid argumen...', '/var/www/html/d...', 30, Array) #2 /var/www/html/docroot/modules/contrib/jsonapi/src/Query/QueryBuilder.php(114): Drupal\jsonapi_defaults\JsonApiDefaultsCurrentContext->getJsonApiParameter('filter') #3 /var/www/html/docroot/modules/contrib/jsonapi/src/Query/QueryBuilder.php(81): Drupal\jsonapi\Query\QueryBuilder->configureFromContext(Array) #4 /var/www/html/docroot/modules/contrib/jsonapi/src/Controller/EntityResource.php(599): Drupal\jsonapi\Query\QueryBuilder->newQuery(Object(Drupal\Core\Entity\ContentEntityType), Array) #5 /var/www/html/docroot/modules/contrib/jsonapi/src/Controller/EntityResource.php(289): Drupal\jsonapi\Controller\EntityResource->getCollectionQuery('node', Array) #6 [internal function]: Drupal\jsonapi\Controller\EntityResource->getCollection(Object(Symfony\Component\HttpFoundation\Request)) #7 /var/www/html/docroot/modules/contrib/jsonapi/src/Controller/RequestHandler.php(89): call_user_func_array(Array, Array) #8 /var/www/html/docroot/core/lib/Drupal/Core/Render/Renderer.php(576): Drupal\jsonapi\Controller\RequestHandler->Drupal\jsonapi\Controller\{closure}() #9 /var/www/html/docroot/modules/contrib/jsonapi/src/Controller/RequestHandler.php(90): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure)) #10 [internal function]: Drupal\jsonapi\Controller\RequestHandler->handle(Object(Drupal\Core\Routing\RouteMatch), Object(Symfony\Component\HttpFoundation\Request)) #11 /var/www/html/docroot/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array) #12 /var/www/html/docroot/core/lib/Drupal/Core/Render/Renderer.php(576): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() #13 /var/www/html/docroot/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure)) #14 /var/www/html/docroot/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) #15 [internal function]: Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() #16 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(153): call_user_func_array(Object(Closure), Array) #17 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #18 /var/www/html/docroot/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #19 /var/www/html/docroot/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #20 /var/www/html/docroot/core/modules/page_cache/src/StackMiddleware/PageCache.php(182): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #21 /var/www/html/docroot/core/modules/page_cache/src/StackMiddleware/PageCache.php(121): Drupal\page_cache\StackMiddleware\PageCache->fetch(Object(Symfony\Component\HttpFoundation\Request), 1, true) #22 /var/www/html/docroot/core/modules/page_cache/src/StackMiddleware/PageCache.php(75): Drupal\page_cache\StackMiddleware\PageCache->lookup(Object(Symfony\Component\HttpFoundation\Request), 1, true) #23 /var/www/html/docroot/modules/contrib/jsonapi/src/StackMiddleware/FormatSetter.php(38): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #24 /var/www/html/docroot/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\jsonapi\StackMiddleware\FormatSetter->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #25 /var/www/html/docroot/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(50): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #26 /var/www/html/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #27 /var/www/html/docroot/core/lib/Drupal/Core/DrupalKernel.php(657): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #28 /var/www/html/docroot/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #29 {main}.

JsonApiDefaultsCurrentContext.php line 26

$thirdPartyDefaults = $resource_config->getThirdPartySetting('jsonapi_defaults', 'default_filter');

Im not expecting no filter here so it will send NULL (getThirdPartySetting default return) to foreach at line 30.