I'm set not to fill in daily But the other day, I can't post any more information. down only one

I want 1 person to post data per day. Now I practice App in and out of work
My work in-out app is
Go into user settings after entering the password. The next page is the time stamp. The time stamp page cannot be edited, it is auto post, just has a page to press save.
As for the exit, I use the action. to press time to leave work

Now I use the formula as in the picture, but the result is It can’t be repeated in 1 day, but it can’t be recorded on another day.2021-06-03T17:00:00Z

Please help guide me

Steve Steve Coile