Gustavo, if you expect anyone here to help you, it's not enough to write only one sentence...
You have to provide more details : Describe the scenario, attach error details, etc..
Hello Gustavo Montoya -
Are you using a pause until date or pause for duration?
I am wondering if the date you are attempting to use to compare with is not in the correct format.
If you can please post a screenshot of the action and what error you are getting, it would help us.