I'm currently using Magento 2.2.6. I've recently encountered the following error while trying to reindex the **catalogsearch\_fulltext**:

> 
> Notice: Undefined offset: 53 in
>  vendor/magento/module-catalog-search/Model/Indexer/Fulltext/Action/Full.php
>  on line 384
> 
> 
> 

Does anyone know how to fix this error?

Any help would be much appreciated.