problemGrid Magento\Newsletter\Model\ResourceModel\Grid\Collection true true 1 problemGrid We found no problems. 0 Magento\Newsletter\Block\Adminhtml\Problem\Grid\Filter\Checkbox Magento\Newsletter\Block\Adminhtml\Problem\Grid\Renderer\Checkbox col-select col-select ID problem_id col-id col-id Subscriber #$subscriber_id $customer_name ($subscriber_email) subscriber_id col-subscriber col-name col-subscriber col-name Queue Start Date queue_start_at true datetime col-start col-date col-start col-date Queue Subject template_subject col-subject col-subject Error Code problem_error_code number col-error-code col-error-code Error Text problem_error_text col-error col-error