error in theme-switcher

hello, I need help, please, I had the next error when i tried to change the theme to specific content type

Warning: Undefined array key "media_media_library_theme_form_mode" in Drupal\form_mode_manager_theme_switcher\Form\FormModeThemeSwitcherForm->setSettingsPerFormMode() (line 189 of modules/contrib/form_mode_manager/modules/form_mode_theme_switcher/src/Form/FormModeThemeSwitcherForm.php).

Drupal\form_mode_manager_theme_switcher\Form\FormModeThemeSwitcherForm->setSettingsPerFormMode(Object, Array, 'media') (Line: 174)
Drupal\form_mode_manager\Form\FormModeManagerFormBase->setFormModeFormSettings(Object) (Line: 255)
Drupal\form_mode_manager\Form\FormModeManagerFormBase->submitForm(Array, Object) (Line: 196)
Drupal\form_mode_manager_theme_switcher\Form\FormModeThemeSwitcherForm->submitForm(Array, Object)
call_user_func_array(Array, Array) (Line: 114)
Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object) (Line: 52)
Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object) (Line: 595)
Drupal\Core\Form\FormBuilder->processForm('form_mode_theme_settings_form', Array, Object) (Line: 323)
Drupal\Core\Form\FormBuilder->buildForm(Object, Object) (Line: 73)
Drupal\Core\Controller\FormController->getContentResult(Object, Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 580)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 169)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 46)
Drupal\redirect_after_login\RedirectMiddleware->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: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)