There are issues for some users - from Deezer Twitter: Breaking News We're experiencing a global server issue at the moment. You may not be able to log in or access all your music content.Bear with us while our teams are investigating this issue. Apologies for the inconvenience.

@Raphaelalves the service is up again and can be used but we are monitoring the situation.
Please do not hesitate to reach out if your should encounter recurring issues.
Thank you for your patience