Getting this Error while Creating Invoice "Invalid Element gst_treatment_code"

Getting this Error while Creating Invoice "Invalid Element gst_treatment_code"

Hello Zoho,

I am easily using Zoho Invoice without any errors till today. Today when I am creating any INVOICE getting this error - Invalid Element gst_treatment_code

Getting this error when I use Save and Send function.

I am NOT GST registered, so why I am getting this error.

My portal name - serpwizard