unable to install theme

Problem/Motivation

The website encountered an unexpected error. Please try again later.

Drupal\Core\Config\UnsupportedDataTypeConfigException: Invalid data type in config system.menu.community, found in file themes/contrib/marvelous/config/install/system.menu.community.yml: Duplicate key "dependencies" detected at line 9. in Drupal\Core\Config\FileStorage->read() (line 118 of core\lib\Drupal\Core\Config\FileStorage.php).

Drupal\Core\Config\FileStorage->readMultiple(Array) (Line: 285)
Drupal\Core\Config\ConfigInstaller->getConfigToCreate(Object, '', '', Array) (Line: 562)
Drupal\Core\Config\ConfigInstaller->findDefaultConfigWithUnmetDependencies(Object, Array, Array) (Line: 525)
Drupal\Core\Config\ConfigInstaller->checkConfigurationToInstall('theme', 'marvelous') (Line: 132)
Drupal\Core\ProxyClass\Config\ConfigInstaller->checkConfigurationToInstall('theme', 'marvelous') (Line: 218)
Drupal\Core\Extension\ThemeInstaller->install(Array) (Line: 141)
Drupal\system\Controller\ThemeController->install(Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 592)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 182)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

Steps to reproduce

try to install Marvelous theme in appearance

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes