After creating an invoice and manually updating the E-Invoice details, I am getting the following error, while trying to print the invoice with the default GST Tax Invoice format:
Error in print format on line 19: the JSON object must be str, bytes or bytearray, not NoneType
This fomat is the default, non-customizable format so this can’t be an error while setting up ERPNext. What could be the problem and how do we solve it?