Below error coming while click Email Receipt button in POS
Traceback (most recent call last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/background_jobs.py”, line 100, in execute_job
method(**kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/core/doctype/communication/email.py”, line 463, in sendmail
recipients=recipients, cc=cc, bcc=bcc)
File “/home/frappe/frappe-bench/apps/frappe/frappe/core/doctype/communication/communication.py”, line 211, in _notify
_notify(self, print_html, print_format, attachments, recipients, cc, bcc)
File “/home/frappe/frappe-bench/apps/frappe/frappe/core/doctype/communication/email.py”, line 151, in _notify
prepare_to_notify(doc, print_html, print_format, attachments)
File “/home/frappe/frappe-bench/apps/frappe/frappe/core/doctype/communication/email.py”, line 232, in prepare_to_notify
doc.content += get_attach_link(doc, print_format)
TypeError: unsupported operand type(s) for +=: ‘NoneType’ and ‘str’