{"status":"success","warnings":[{"message":""delete" has unknown attribute(s): ['lang'] (near operation with index 11; document_id 1_1_3201)"},{"message":""delete" has unknown attribute(s): ['lang'] (near operation with index 12; document_id 1_1_3202)"},{"message":""delete" has unknown attribute(s): ['lang'] (near operation with index 13; document_id 1_1_3200)"},{"message":""delete" has unknown attribute(s): ['lang'] (near operation with index 14; document_id 1_1_3204)"},{"message":""delete" has unknown attribute(s): ['lang'] (near operation with index 15; document_id 1_1_3209)"}],"adds":10,"deletes":5}

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