error message is grammatically incorrect

The following error message is grammatically incorrect:
"No build status have been sent, even that there is Stash notification for that plan configured. Is your application link configured properly?"
I would suggest the following changes:
"No build status have been" to "No build status notification has been"
"been sent, even that there is" to "been sent, even though there is"
"there is Stash notification" to "there is a Stash notification"
The modified full error message would be:
"No build status notification has been sent, even though there is a Stash notification for that plan configured. Is your application link configured properly?"