Google Account unable to connect every day, need to reconnect

Hello, mailspring was working well, I changed my google’s password, and reconnected it to mail spring, gave it all permissions, and received a correct smtp message. everything worked fine for about half a day The next day I saw a red square at the bottom-left corner saying that account couldn’t reconnect, so I rebuilt cache, and reconnected it and everything worked for another day, then I saw the error again, so i deleted the account from mailspring, rebuilt cache once more, deleted cookies on my browser, rebooted the computer, then reconnected the account, and it worked for another day, now I come back to my computer, to see the same error again.
I use a small business, google apps account, and this is the first time I’ve had issues. please any help is appreciated