[v1.2.3- M2MetaTagsTemplate] Uncaught TypeError: preg_match() expects parameter 2 to be string, boolean given

Issue:

We are using version 1.2.3 of module M2MetaTagsTemplate on our site. When using template '[product_description]' and description set config 'Use Default Value' in the Scope Storeview, we are facing an issue 

The issue just happens with the product without Description.

Solution:

To solve the issue above, we have modified this file app/code/Bss/MetaTagManager/Helper/Data.php

Please apply this file to your site to fix the issue.

If you have any issues, please feel free to contact us.

We'd like to help.