I'm trying to test for a player in a certain area relative to the command block executing the command, so if I need to move the location of what I'm making, the command block isn't sensing for something 3000 blocks away. What I have is this:
And this (these are 2 separate command blocks sensing 2 different areas):
But when I test them, they say "The entity UUID provided is in an invalid format." What am I doing wrong?