Chrome dev tools error msg on Kee extension on Windows 10

Hi

I notice that Chrome Dev Tools is displaying this message on every page:
DevTools failed to parse SourceMap: chrome-extension://mmhlniccooihdimnnjhamobppdhaolme/lib/tp/browser-polyfill.min.js.map

I checked my Chrome extensions page and that long extension identifier is the one for Kee. Can you please help me decipher what that means and how I resolve it?

thank you