Parameter Post Content_Words_Limit

Hello Guys!

I have a little problem with plugin. When I insert parameter [post_words_limit=”20″], in shortcode, it does not to work. I can’t make it work. The parameter is together other parameters (category=”92″   limit=”12″ template=”template-1″ post_tags=”false” post_author=”false”). Other parameter work but words limit no. Foget something? If you can help. Thanks you for everything.
Good day!