Please provide more information as to how the plugin stopped working. I can’t help with out knowing what you’re actually experiencing. Answering the following may help: How is it not working? What did you do since it last worked (Did you install any new plugins, change themes, etc?)?.
It scrapes this link with no problem. However it fails to post with this link and just a white screen.
http://www.territoriodigital.com/notaimpresa.aspx?c=2260596125180690
Just a heads up, I can reproduce this issue on my own site. It appears to be an issue with the actual content scraped from the site. I’ll have to look at it more to see exactly what is failing.