Server error while try to convert into PDF

@mainul, if possible please help him.

Problem solved.
pdf.py line 36 add below code:
options = {
“enable-local-file-access”: None,
“quiet”: “”
}

@Samsul

Use this fix at your own risk. This restriction was added because of a Security Issue (Vulnerability) which allows arbitrary code execution on your server.

https://github.com/frappe/frappe/pull/6836