Update button doesnt work

hi Does anybody know why the update button doesn’t work? also, the other section that shows the information about the person who e-mailed you blocked you from seeing the whole e-mail you have to click on the square with an arrow to open it bigger. I’m using windows 11 mail and it shows you the e-mail right away when you click on it on the right-hand side. also, the built-in spell-check doesn’t work. I’m using Grammarly. but they said they don’t support mailspring.it comes on sometimes though. also there is a message in the brown square that says can not connect to account or something like that without any of the credentials being changed.it doesn’t tell you which account it is. how can you check?
please let me know