Your settings are incomplete. You don't have PXT-Live (or PXT-Live Plus) selected as a control surface. Please refer to the manual for PXT-Live, which covers the settings you need to use. Once that's working, then get PXT-Live Plus working by following the instructions in its manual for the settings you need to use.
According to the log, you're using out of date versions of PXT-Live and PXT-Live Plus. You can download the latest versions from your account. If the problem remains after getting those installed, delete your Log.txt, load a new Live set and then attach the newly generated Log.txt file here.