Text hidden when start

I was making a dialogue went i test it. The player collision to vent will making the dialogue run. But instead it made it invisible and is not running. I do i fix it.
Here’s the event:

Also don’t mind the diffrence about the (text_scroll) with the (text_speed), I followed the video tutorial.

This is quite messy, you have duplicates and the name of timers are not the same.
Fix the obvious mistakes and share an updated screenshot if the issue is not fixed.