ManyCam Unable to Start Keynote

Mac OS Catalina 10.15.7 ManyCam Keynote 10.3.9

I was in the recent past able to add my PowerPoints to my presets without a problem. Then recently I was not able to add PowerPoint files but if converted to KeyNotes it worked. Now I am unable to add even Keynote files. Get an error message: “ManyCam was unable to start Keynote”. I followed all items on the guide. Have the newest versions of Keynote and ManyCam installed. Thank you for your time and efforts in trying to help me.