Show Italic plugin not working

I get this message in the Macro window when I use View > Show Italic.
Glyphs 3.2 (3219).
Uninstalling and re-installing it via Plugin Manager didn’t solve.

Many thanks.

Can you remove and re-install the python module?

Hi Georg,
python module removed and re-installed but now the message has slightly changed:

I’m getting the same.

I have fixed it.

Thank you very much Georg, now it works correctly.