[Q] Something having to do with Anomalies and REX Prefix?

[UchihaKite]

Good Afternoon fellow C++ homies!

So, here is a random question for you all. Apart of my final is creating Pong with our own twist to it. Such as, I added an ability to the left paddle, when the ball hits the paddle three times, you can revert the ball back to the exact location it was at 3 seconds prior.
However I have seemed to come up with a weird message I have never seen before, and would love your guys thoughts on what it could be?

Anomaly: meaningless REX prefix used

My code is pretty damn long, so if you guys would rather me not post it up, if someone could just explain how that message comes up, I can look through my code and figure it out Thanks guys!

[eXpl0it3r]

Did you try Googling the error?
I just did and found many posts.

Some have claimed that uninstalling AMD Evolved/Raptr helpes, but I certain some further searching will reveal more possible solutions.