Ensoniq SQ1 "Unexpected Event 144, 130" message

I have someone bringing me an Ensoniq-SQ1 to look at.
He say he gets this message "Unexpected Event 144 and 130 ".
Does anyone know what I should look for, or what is causing?

First thing i would try is to re-initialize the unit as per the user manual. If that doesn’t clear it then it’s likely a main board problem.