Ladybug Error: "Solution exception:Local variable 'x' referenced before assignment."

Hi, 

I was hoping I could get some guidance. I am fairly new to LB and HB, but I have been using them intensively for about a month now, and whenever I am using the Psych Chart component I get this error very frequently, that an X local variable is referenced before assignment. 

The local value it references is different every time, and the error seems to pop up every time I set too many values on metabolic rate / clothing level, etc; or whenever I set the components in a particular order. 

¿Has this happened before or is there a way to fix this in the component code? 

Thanks all!