That's totally useless. You have not provided any system information or other technical details. We don't even know your version of AE, much less anything else. You have to do a million times better.
Mylenium is correct, we need to know a lot more in order to help you. What version of AE are you running (down to the last decimal point)? What OS? What are your system specs? When do you get this error message?
Have you installed NVIDIA CUDA drivers on a computer with an AMD GPU? (Hint: don't.)