Hello Virginie Chardet,
please check the Link you are using for Login.
You probably saved a link to https://login-emea.docuware.cloud/ to your favourites, desktop or whatever you use to store your links.
Your link should just be https://pelletier-tp.docuware.cloud/
This not working redirect usually occurs when you are using a wrong URL.
Greetings from Germany,
Simon H. Hellmann
DocuWare System Consultant