Hello @jose_antonio_hernand,
Thank you for replying with additional information.
I was looking through your .txt file and I noticed that some of your headers have a tab at the end of it. Maybe that is the problem. I am not 100 percent sure that is the issue but I am sure that it is a header issue.
For reference, this user had the same exact same issue and fixed it by changing their headers.I hope that these suggestions help or at least point you in the right direction. I would try removing the trailing tab at your header, and then look into that user's solution.
If none of that works please reach out again and we will do some more trouble shooting!
Chloe 