magento2 – Magento 2 : Import category product data error

I am facing below error on some category id’s
when i try to export category product data using below
code

I need some advice what this code means & ways to fix this.

{“0”:”Item (MagentoCatalogModelProductInterceptor) with the same ID “112445” already exists.”,”1″:”#1 MagentoEavModelEntityCollectionAbstractCollection->addItem() called at (generated/code/Magento/Catalog/Model/ResourceModel/Product/Collection/Interceptor.php:608)n#2 MagentoCatalogModelResourceModelProductCollectionInterceptor->addItem() called at (vendor/magento/module-eav/Model/Entity/Collection/AbstractCollection.php:1138)n#3