"Script failed (language is formcalc...)" - "Error: Argument mismatch..."

Hi there,

I temporarily switched from JavaScript to FormCalc just to see what functions were available.  It didn't have what I was looking for, so I did not add any functions, I just browsed, then I switched back to JavaScript.  However, now when I view my PDF I get the following error messages which were not there before:

Any help would be appreciated.

Thank you.