URGENT - ohm64 with live9 not working :(

hi

i've been using my ohm64 with live 9.0.1 for years. it works great up until recently

none of the lights on the grid light up anymore. i move the faders on the ohm and nothing happens. i can see on the screen that ableton is receiving MIDI information but nothing is actually happening

i have a version of ohmmodes remote scrript installed which has worked perfecttly until lately. will someone give me some advice please?? i have a show today!!!!

thanks in advance

thomas aka automaton