Problem/Motivation
When i update user i get this error:
Warning: Undefined array key "subscribe" in Drupal\mailchimp_lists\Plugin\Field\FieldWidget\MailchimpListsSelectWidget->getSubscribeFromInterests() (line 346 of /var/www/html/web/modules/contrib/mailchimp/modules/mailchimp_lists/src/Plugin/Field/FieldWidget/MailchimpListsSelectWidget.php)
#0 /var/www/html/web/core/includes/bootstrap.inc(346): _drupal_error_handler_real(2, 'Undefined array...', '/var/www/html/w...', 346)
#1 /var/www/html/web/modules/contrib/mailchimp/modules/mailchimp_lists/src/Plugin/Field/FieldWidget/MailchimpListsSelectWidget.php(346): _drupal_error_handler(2, 'Undefined array...', '/var/www/html/w...', 346)
#2 /var/www/html/web/modules/contrib/mailchimp/modules/mailchimp_lists/src/Plugin/Field/FieldWidget/MailchimpListsSelectWidget.php(330): Drupal\mailchimp_lists\Plugin\Field\FieldWidget\MailchimpListsSelectWidget->getSubscribeFromInterests(Array)
#3 /var/www/html/web/core/lib/Drupal/Core/Field/WidgetBase.php(400): Drupal\mailchimp_lists\Plugin\Field\FieldWidget\MailchimpListsSelectWidget->massageFormValues(Array, Array, Object(Drupal\Core\Form\FormState))
#4 /var/www/html/web/core/lib/Drupal/Core/Entity/Entity/EntityFormDisplay.php(243): Drupal\Core\Field\WidgetBase->extractFormValues(Object(Drupal\Core\Field\FieldItemList), Array, Object(Drupal\Core\Form\FormState))
#5 /var/www/html/web/core/lib/Drupal/Core/Entity/ContentEntityForm.php(334): Drupal\Core\Entity\Entity\EntityFormDisplay->extractFormValues(Object(Drupal\user\Entity\User), Array, Object(Drupal\Core\Form\FormState))
#6 /var/www/html/web/core/lib/Drupal/Core/Entity/EntityForm.php(293): Drupal\Core\Entity\ContentEntityForm->copyFormValuesToEntity(Object(Drupal\user\Entity\User), Array, Object(Drupal\Core\Form\FormState))
#7 /var/www/html/web/core/lib/Drupal/Core/Entity/ContentEntityForm.php(155): Drupal\Core\Entity\EntityForm->buildEntity(Array, Object(Drupal\Core\Form\FormState))
#8 /var/www/html/web/core/modules/user/src/AccountForm.php(367): Drupal\Core\Entity\ContentEntityForm->buildEntity(Array, Object(Drupal\Core\Form\FormState))
#9 /var/www/html/web/core/lib/Drupal/Core/Entity/EntityForm.php(278): Drupal\user\AccountForm->buildEntity(Array, Object(Drupal\Core\Form\FormState))
#10 /var/www/html/web/core/lib/Drupal/Core/Entity/ContentEntityForm.php(145): Drupal\Core\Entity\EntityForm->submitForm(Array, Object(Drupal\Core\Form\FormState))
#11 /var/www/html/web/core/modules/user/src/AccountForm.php(431): Drupal\Core\Entity\ContentEntityForm->submitForm(Array, Object(Drupal\Core\Form\FormState))
#12 [internal function]: Drupal\user\AccountForm->submitForm(Array, Object(Drupal\Core\Form\FormState))
#13 /var/www/html/web/core/lib/Drupal/Core/Form/FormSubmitter.php(114): call_user_func_array(Array, Array)
#14 /var/www/html/web/core/lib/Drupal/Core/Form/FormSubmitter.php(52): Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object(Drupal\Core\Form\FormState))
#15 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(592): Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object(Drupal\Core\Form\FormState))
#16 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(320): Drupal\Core\Form\FormBuilder->processForm('user_form', Array, Object(Drupal\Core\Form\FormState))
#17 /var/www/html/web/core/lib/Drupal/Core/Controller/FormController.php(73): Drupal\Core\Form\FormBuilder->buildForm(Object(Drupal\user\ProfileForm), Object(Drupal\Core\Form\FormState))
#18 [internal function]: Drupal\Core\Controller\FormController->getContentResult(Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\RouteMatch))
#19 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#20 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(564): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#21 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#22 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#23 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(158): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#24 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(80): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#25 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#26 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#27 /var/www/html/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#28 /var/www/html/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#29 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#30 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#31 /var/www/html/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#32 /var/www/html/web/core/lib/Drupal/Core/DrupalKernel.php(708): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#33 /var/www/html/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#34 {main}