Hello @penguinpablo, sorry for posting this here as I don't know how to contact you.
I'm not sure if this was raised to you already but I think the Steem Upvote calculator is still using the steemd.steemit.com node as default. Would it be possible to use the node selected and saved in the steemnow.com index page?
The Upvote Calculator currently shows this:
Thank you for your comment.
I've changed the node and now it is working properly again.
Thanks!