It sounds like you are using layers that are too big for your available ram. Make them smaller. If you have no idea what to do then try turning off one layer at a time until the error goes away. When you have isolated the layer causing the problem select it and press the U key twice to reveal all of the layer properties that have been modified. Take a screenshot (full size) and post that along with your version of AE and details about your system down to the last decimal point and we can suggest some things that may get you through the project.
Thank you, I am going to try that now… silly questions...by turning off a layer, you mean just hitting the eyeball, correct?
... same culprit as the 1st error...
I am using AE CS6
OS X Yosemite (Versiion 10.10.3)
Processor: 2.6 GHz Intel Core i7
Memory: 8 GB 1600 MHz DDR3
Graphics: NVIDIA GeForce GT 650M 1024 MB
You still have not provided any real info about your project as requested by Rick. The simple answer is probably that you are overcranking the output of the Motion Tile effect as mentioned in the initial error message, but we really can't know.
It appears to be rendering now. I adjusted some of my layers and re keyed the camera.
Thanks for the advice... now only 28 hours to go!