Error loading document because of decal

I opened a Solidworks assembly in Visualize and included its decals.

The decals came in at first but eventually disappeared from my visualize model.

However, they were still in the "Appearances" tab so I dragged them back onto my model and sized and positioned them correctly.

The decals rendered fine with the "Accurate" renderer.

When I tried to output a render I got an error that the offline render could not load.

I closed the model and tried to reopen it (the new SVPJ file, not the original SW assembly).

It will not open and I get this error: