This is the problem with the headline. Launches get delayed, rescheduled, aborted, cancelled for many reasons. This mission has had launch dates moved around several times over the last couple years. This headline is referring to having the launch aborted about a week ago.

First launch was aborted due to a helium leak in the cryogenic engine a week ago.

There was a technical snag last week which was identified one hour before launch. So it was rescheduled today after correcting the problem. Hence the second try.