Connects but LR doesn't respond anymore

[Faneuil]

After years of relatively problem-free use, now LRc connects (green in midi2lr) but doesn't respond.
Midi2lr shows that it is receiving midi signal.
Sometimes LRc will react properly, but mostly not now

Eric

[Faneuil]

diag:
Plug-in error log for plug-in at: /Users/Colossus/Library/Application Support/Adobe/Lightroom/Modules/MIDI2LR.lrplugin

**** Error 1

An error occurred while attempting to run one of the plug-in’s scripts.
?:0: attempt to call method 'send' (a nil value)

**** Error 2

An error occurred while attempting to shut down the plugin.
?:0: attempt to call method 'send' (a nil value)