Server error when generate PDF

hi, after the last update, i have started to have a server error when create a PDF.
see the code below

Server Error

    	
	Traceback (innermost last):

File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/app.py”, line 60, in application
response = frappe.api.handle()
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/api.py”, line 50, in handle
return frappe.handler.handle()
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/handler.py”, line 19, in handle
execute_cmd(cmd)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/handler.py”, line 36, in execute_cmd
ret = frappe.call(method, **frappe.form_dict)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/init.py”, line 806, in call
return fn(*args, **newargs)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/templates/pages/print.py”, line 180, in download_pdf
html = frappe.get_print(doctype, name, format)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/init.py”, line 1022, in get_print
html = build_page(“print”)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/website/render.py”, line 127, in build_page
context = get_context(path)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/website/context.py”, line 16, in get_context
context = build_context(context)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/website/context.py”, line 54, in build_context
ret = module.get_context(context)
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/templates/pages/print.py”, line 37, in get_context
no_letterhead=frappe.form_dict.no_letterhead),
File “/home/frappe/press/benches/1603030659/apps/frappe/frappe/templates/pages/print.py”, line 121, in get_html
html = template.render(args, filters={“len”: len})
File “/home/frappe/press/benches/1603030659/env/lib/python2.7/site-packages/jinja2/environment.py”, line 989, in render
return self.environment.handle_exception(exc_info, True)
File “/home/frappe/press/benches/1603030659/env/lib/python2.7/site-packages/jinja2/environment.py”, line 754, in handle_exception
reraise(exc_type, exc_value, tb)
File "

This is fixed, please update your system again.

thank you