Checking the event viewer error log we have found the following error message:
The Execute method of job definition Microsoft.Office.Server.UserProfiles.UserProfileImportJob (ID 80d82d1f-54ba-467a-b3a6-8c7f52377911) threw an exception. More information is included below.
There was no endpoint listening at http://srv:5725/ResourceManagementService/MEX that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
This error could be produced because one of the synchronization user profile services are in stopped state. To solve this error it is necessary to go to server where the User Profile sync is running, enter into the services console and then start the service: