Fatal Error when creating Pantheon Account

When creating new Pantheon account (drd/settings/pantheon/accounts/add) there is an error

Error: Call to a member function getMachineToken() on null in Drupal\drd_pi_pantheon\Entity\AccountForm->form() (line 19 of /srv/bindings/bec3566911844e4eb34a1495467114c1/code/modules/contrib/drd/modules/drd_pi_pantheon/src/Entity/AccountForm.php)

#0 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/Entity/EntityForm.php(149): Drupal\drd_pi_pantheon\Entity\AccountForm->form(Array, Object(Drupal\Core\Form\FormState))
#1 [internal function]: Drupal\Core\Entity\EntityForm->buildForm(Array, Object(Drupal\Core\Form\FormState))
#2 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/Form/FormBuilder.php(520): call_user_func_array(Array, Array)
#3 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/Form/FormBuilder.php(277): Drupal\Core\Form\FormBuilder->retrieveForm('pantheon_accoun...', Object(Drupal\Core\Form\FormState))
#4 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/Controller/FormController.php(91): Drupal\Core\Form\FormBuilder->buildForm(Object(Drupal\drd_pi_pantheon\Entity\AccountForm), Object(Drupal\Core\Form\FormState))
#5 [internal function]: Drupal\Core\Controller\FormController->getContentResult(Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\RouteMatch))
#6 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#7 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/Render/Renderer.php(573): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#8 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#9 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#10 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/vendor/symfony/http-kernel/HttpKernel.php(151): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#11 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#12 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#13 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#14 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#15 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#16 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#17 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#18 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#19 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/core/lib/Drupal/Core/DrupalKernel.php(708): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#20 /srv/bindings/bec3566911844e4eb34a1495467114c1/code/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#21 {main}

It's related to the fact that machine token is used as default value on the entity form for the Pantheon account but when it's new account then the value returned by the decoding function is NULL. It then violates interface and class requirement and the site crashes.