I can't add service, the content doesn't show on my page

I am trying to add services on my web, but when i add them the content doesn’t show when i publish the page. You can see a picture here:

https://files.mastercoria.com/files/img/error/error-when-i-try-to-add-service-block.png

I configured correctly the plugin, and i added the correct slug on the content, but it doesn’t show on the page, it’s blank.

Regards,
Christopher Coria.

(Sorry if i have spelling mistakes, i’m mexican person)