my digital piano IS connected but does not give any signal... Can somebody help?

my piano is PX130 casio and in midi device i checked casio midi input. And then I when to the tracks and checked casio as input as well at the very first when I played a couple of keys i could see the green bar go up and down but then when I closed the program and restarted it stops working.

All the settings and connections are supposed to be the same as before.. I don't get it somebody help?
is there anything else I should check other than MIDI input?