What does this mean and how can I fix it?

buymyvacuums

Whenever I try to save my file this text box comes up. I tried saving an older version of the file and it worked perfectly.



can someone please tell me how I can fix this without losing my file?

Chibox

What it means is that you have more than 2 Parameters being used by a single Art Mesh.

This is very common if you're trying to use Angle X and Angle Y together as well as another Parameter.

One way to work past this is to create a nested Deformer.
Deformer 1 handles the X and Y movement, and Deformer 2 is nested and handles the 3rd parameter movement.