iPhone wants me to enter the password for Outlook email account
Hello,
I have a huge problem with my iPhone 6s. I just configured my Outlook Account, and it keeps asking for my password continuously. I never stops. I enter my password, then press "Ok", then the window closes, and 2 second after, it opens again. I enter my password again, and it opens again, and again, and again. This is boring, upsetting. Can someone tell me how to fix it please ? Because now, I don't have my contacts, I cant' use mail, I can't do anything.
Thanks in advance.
[Re-Titled by Moderator]
iPhone 6s, iOS 9.3.2