It is easy to overturn a mis-steered Archicad Lightworks PickUp Truck into the wide, deep and down-sucking mud-filled ditch of Memory Error in the middle of a moonless light during a snowstorm where vampires and werewolves roam, seeking to inhale the blood of innocents like yourself. Or i am watching too much television.
You most likely have a corrupted element if you still get errors with a small rendering - like 500 pixels, say. Systematically eliminate layers and areas until you find the culprit.
On the other hand, you can also drive Archicad into the ditch with:
— too many polygons [a forest of 3D trees, for instance]
— high sampling with 'realistic' [so-called] lighting [over 64]
Try a rendering with Sun Class Sun Shader to eliminate the ray tracing......
Dwight Atkinson