Read all files in a directory

I need to compare the date of creation of multiple files that are being created throughout the execution of the application, so that if the date and time of the file is equal to the current date and time, a led will light up, and if not, the file will be deleted.

I've made a VI, but I'm getting an error and I don't know how to fix it.

What I need is for the vi to read all the files in the directory and continue reading all the files as they are created in the directory. The weird thing about this error is that it only shows up when I run it without highlight execution.