I'm just not able to catch her when she appear at front porch
The spy camera doesn't work at all btw
That picture is from a different event.
The one that is needed is when she stalks you past midnight (between 0:00 and 6:00). You don't have to catch her. Just get a short message saying:
"I could swear I saw someone here..."
"I must be imagining things."
You don't get to actually speak to her. Easiest way to get that (if you have not) is to do an all nighter, or set your alarm one hour ahead, sleep for 1 hour and try again if she does not show up. That way you get more opportunities for the event to fire. You may well have done that event in the past, but the script for the event you put pictures up does not check if this particular one has been done. So you might have missed it.
Alternatively, you can use the console and type:
$ kylie.flags.run = True
$ kylie.flags.hasRun += 1
Be aware that console is case sensitive.
Then afterwards if her Yandere is 50 or more you will get the event (when you try to meet up with her), also between 0:00 and 6:00. Also she must not be pregnant.