[ServletException in:/jsp/edit/script/sbuilderedit.jsp] null'

[ServletException in:/jsp/edit/script/sbuilderedit.jsp] null'

I am having this again:
[ServletException in:/jsp/edit/script/sbuilderedit.jsp] null'

while trying to view the definition of  a form via the Scripting screens. I have opened access to support and will PM Ruben about this.