Even more importantly, looks like you’re using a (very) old version of serialosc.maxpat.
Grab the latest versions from here: https://github.com/monome/serialosc.maxpat
Install by putting the files in your Max 6.1 folder (anywhere, but /patches is the ‘normal’ place)
Download the updated versions of the apps from https://github.com/monome-community
However, if you don’t want to use new any new apps, and instead just get things back to ‘normal’, you’ll need to install those ‘zeroconf’ files in Max 6.1 – The good news here is that you obviously already have the files in your Max 6.0 folder, so just open /Cycling '74/max-externals in two finder finders and go to the very bottom of 6.0 to find the 2 files that you can copy to the 6.1 folder.