I assume that your image is correctly loaded in the extension, but the "Optical correction" section displays the message that no optic module is available for your image right ?
If so, would you please check that the original RAW image has not been modified first in Apple Photos ? If so, that means that you try to edit an already processed image, reason why no DxO optics module can be applied to the image.
You might have the same behavior in Desktop version of OpticsPro: if you tried to load an image from a Lumix GX8 which has already been modified by a third party software, then no optic module can be applied.
Would you please give us further information?