I don't have a Mac so cannot answer your question from personal experience. About the only thing I can suggest is redownload and re-install in case something wasn't quite, but maybe it doesn't work, I don't know.
It seems you wanted to include some screenshots. If so you need create the message on the web version of the forums rather than e-mail where attachments aren't allowed, and either copy-paste an image into the message text or upload an image using the photo icon above where you type in the reply. There is some size limit to them, so don't copy-paste your entire hi-res screen or multiple monitors. Make the window your pasting less than full screen or crop off the parts outside the window.
Not sure if I already sent this to you - it seems to be a reasonable explanation of why the editor no longer works:
Adobe DNG Profile Editor
created by Jao vdL <https://forums.adobe.com/people/Jao+vdL> in Lightroom Classic CC — The desktop-focused app - View the full discussion <https://forums.adobe.com/message/10645761#10645761>
They changed the way we are supposed to make profiles now. Go to Digital Negative (DNG), Adobe DNG Converter | Adobe Photoshop CC <https://forums.adobe.com/external-link.jspa?url=https%3A%2F%2Fhelpx.adobe.com%2Fphotoshop%2Fdigital-negative.html%23resources> and download the profiles SDK. It will contain instructions on how to generate profiles that shift white balance, change saturation, etc. Basically it will generate a creative profile in xmp format that you can call up in Lightroom Classic, Camera Raw and Lightroom CC.