Problem translation of terms menu - Drupal 8.5.1 - Distribution VarBase how are they? 
I have a problem with the menu item translation. when i make click in button translate i have a issue i attach image.

I am using Drupal 8.5.1 and the distribution VarBase 8.x-4.16.



Error: After the click, we see the following error.


El sitio web encontró un error inesperado. Vuelva a intentarlo más tarde.InvalidArgumentException: Field content_translation_source is unknown. in Drupal\Core\Entity\ContentEntityBase-&gt;getTranslatedField() (line 580 of core/lib/Drupal/Core/Entity/ContentEntityBase.php). Drupal\Core\Entity\ContentEntityBase-&gt;get(&#039;content_translation_source&#039;) (Line: 44)
Drupal\content_translation\ContentTranslationMetadataWrapper-&gt;getSource() (Line: 120)
Drupal\content_translation\Controller\ContentTranslationController-&gt;Drupal\content_translation\Controller{closure}(&#039;es&#039;)
array_filter(Array, Object) (Line: 122)
Drupal\content_translation\Controller\ContentTranslationController-&gt;overview(Object, &#039;menu_link_content&#039;)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber-&gt;Drupal\Core\EventSubscriber{closure}() (Line: 582)
Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber-&gt;wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber-&gt;Drupal\Core\EventSubscriber{closure}() (Line: 151)
Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 68)
Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 99)
Drupal\page_cache\StackMiddleware\PageCache-&gt;pass(Object, 1, 1) (Line: 78)
Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 50)
Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 664)
Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19)


I hope favorable answers!!
As always thank you very much
I solved it, going to admin/config/regional/content-language and check the box in Custom menu link and solve the problem.