It says: " Effective October 1st, 2022 , Microsoft will begin disabling all Basic authentication for existing protocols" and they have been doing it in batches since then. It has nothing to do with the version of eM Client you are using. It is a change made by Microsoft on their servers that affects how the account is accessed and will affect any email application you are using to connect to that account.
Just go to Menu > Accounts and click on the account. Then use the arrow keys on the toolbar to move the account up or down.