getting it started?

hi i keep getting the “Error getting articles. Please check Shop-ID, API and secret.”

i don´t know what i am doing wrong? the plugin is activated,the id and the api/secret are in the right place!

i used this code to include the shop into my site :

[spreadplugin shop_id=”X” shop_limit=”20″ shop_locale=”de_DE” shop_source=”net” shop_category=”” shop_social=”1″ shop_enablelink=”1″ shop_productcategory=”” shop_checkoutiframe=”0″ shop_sortby=”” shop_api=”X” shop_secret=”X”]

Thanks for any help

https://wordpress.org/plugins/wp-spreadplugin/