G Suite Account for email domain - Gateway Timeout

Hi, i’ve trying to search for similar problem but i can’t find with same exact issue.

below is the error thrown in console when i’m setting up email domain using gsuite.

If you’re using Gsuite, no need to create an email domain. Just use GMail as the service and proceed to configure.

still got the same error on saving,

Please check in your gmail settings if IMAP is on and Access to LessSecurity Apps is On