Some possibilities:

It can't 'see' the Actor figure, because the scene is saved but the figure has been moved in the runtime. Or the runtime is now elsewhere.

The script has been updated for Poser 11, which broke it on Poser Pro 2014.

Poser does not yet have 'disk write' permission from Windows, for some reason. It can't drop the file into the runtime. Or an anti-virus is prevent it doing so.

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Learn the Secrets of Poser 11 and Line-art Filters.