Connection with outlook 365 problems

Out of blue today, my Emclient wont connect to Office 365 email server. The pop up for user name and passoword just keeps popping,wont go away when I select and enter.I tried changing the password at the server, no change. I cant decipher the log file. HELP. just wont authenticate exchange

The email provider no longer accepts username/password logins, so you won’t be able to use that login method anymore. They should have warned you that they were no longer supporting basic authentication, but maybe they didn’t.

Please go to Menu > Accounts and remove the account.

Then click on Add Account and enter the email address in the Automatic Setup. You will be passed to your web browser to authenticate the account, then back to eM Client where the account will have been setup with Modern Authentication.

Thank you Gary…so if I delete my account, wont I lose all my folders? Or, do I have to backup, then delete account, create new one, and restore it using the backup?