unhandled exception about xoscillo HOT 5 CLOSED

it seems that the program throws this exception when I try to open menus once 
created the arduino

I think this error is caused because the graph isnt generated until the first 
voltage read

Well.. Maybe I found the origin of all those exceptions.. Maybe, it is that for 
some reason, the oscilloscope doesnt start until there is a significative read 
in the arduino board, so the window wont work, and neither the controls (today 
I tried to use Xoscillo and it worked, not as yesterday)

Also, your program only works with "well built" circuits, when it triggers the 
"tools" (as decode frequency) will work, otherways it won't