MMM-Remote-Control - Uncaught TypeError: Cannot read property

[Mykle1]

After several deletions and re-installations of this module, I turn to you, the forum community, for assistance. This error appears in the dev console under MM 2.1.0 and MM 2.1.1. The module loads but does not function.
Uncaught TypeError: Cannot read property 'identifier' of undefined at Class.socketNotificationReceived (:8080/modules/MMM-Remote-Control//MMM-Remote-Control.js:110) at module.js:183 at n. (socketclient.js:26) at n.emit (socket.io.js:2) at n.onevent (socket.io.js:3) at n.MMSocket.self.socket.onevent (socketclient.js:19) at n.onpacket (socket.io.js:3) at n. (socket.io.js:3) at n.emit (socket.io.js:2) at n.ondecoded (socket.io.js:1)