{"status":"success","warnings":[{"message":""delete" has unknown attribute(s): ['lang'] (near operation with index 1; document_id 1_1_4710)"},{"message":""delete" has unknown attribute(s): ['lang'] (near operation with index 2; document_id 1_1_4714)"}],"adds":2,"deletes":2}

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event_log - (/var/www/wordpress/wp-content/plugins/lift-search/wp/lift-batch-handler.php:411)
send_next_batch
