Hey Federico, I'm not fluent in Spanish, so I'll reply in English. Are you looking for the internal status of a site workflow or a list workflow?

Hi,

I need to read internal status of workflow in the specific list, for example: started, error, closed, terminated, completed.

The internal status are created by sharepoint. I do not know how to visualize if a one or more workflows has an error, when there are another 150 workflows running.

In the List toolbar, click "Workflow Settings":

This will show you workflows that are on this list, how many instances of them are running, and if you click, it will let you go to the ones of certain statuses:

Ok, but how to check for workflows, how many workflows are in status: started, closed, terminated, completed, error.???

I find this site, but only work correctly in a one site, in the other site with more workflows show me an error, for example:

This site have a many many workflows, more than the other site, and show me an error. I dont know why????