Error en invoice_received_entity_cron()

[MrAkaki]

En una instalación completamente limpia obtengo este error.

Error: Using $this when not in object context in invoice_received_entity_cron() (line 95 of modules/contrib/e_invoice_cr/modules/invoice_received_entity/invoice_received_entity.module).
invoice_received_entity_cron()
call_user_func_array('invoice_received_entity_cron', Array) (Line: 392)
Drupal\Core\Extension\ModuleHandler->invoke('invoice_received_entity', 'cron') (Line: 235)
Drupal\Core\Cron->invokeCronHandlers() (Line: 133)
Drupal\Core\Cron->run() (Line: 75)
Drupal\Core\ProxyClass\Cron->run() (Line: 65)
Drupal\automated_cron\EventSubscriber\AutomatedCron->onTerminate(Object, 'kernel.terminate', Object)
call_user_func(Array, Object, 'kernel.terminate', Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.terminate', Object) (Line: 88)
Symfony\Component\HttpKernel\HttpKernel->terminate(Object, Object) (Line: 32)
Stack\StackedHttpKernel->terminate(Object, Object) (Line: 671)
Drupal\Core\DrupalKernel->terminate(Object, Object) (Line: 22)

La linea exacta es esta, quite el $this, pero me dice que la función redirect no existe, alguien sabe a que se debe esto?
return $this->redirect('entity.invoice_received_entity.collection');