Server Error when printing cheque from Journal Entry screen

I am new to ERPNext… When printing cheque from the Journal Entry screen… Server error is prompting as follows:

Traceback (most recent call last):
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/app.py”, line 65, in application
response = frappe.api.handle()
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/api.py”, line 53, in handle
return frappe.handler.handle()
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/handler.py”, line 22, in handle
data = execute_cmd(cmd)
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/handler.py”, line 53, in execute_cmd
return frappe.call(method, **frappe.form_dict)
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/init.py”, line 923, in call
return fn(*args, **newargs)
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/utils/print_format.py”, line 28, in download_multi_pdf
output = frappe.get_print(doctype, ss, format, as_pdf = True, output = output)
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/init.py”, line 1232, in get_print
return get_pdf(html, output = output)
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/apps/frappe/frappe/utils/pdf.py”, line 17, in get_pdf
pdfkit.from_string(html, fname, options=options or {})
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/env/src/pdfkit/pdfkit/api.py”, line 66, in from_string
configuration=configuration)
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/env/src/pdfkit/pdfkit/pdfkit.py”, line 38, in init
self.configuration = (Configuration() if configuration is None
File “/opt/bitnami/apps/erpnext/htdocs/frappe-bench/env/src/pdfkit/pdfkit/configuration.py”, line 27, in init
https://github.com/JazzCore/python-pdfkit/wiki/Installing-wkhtmltopdf’ % self.wkhtmltopdf)
IOError: No wkhtmltopdf executable found: “”
If this file exists please check that this process can read it. Otherwise please install wkhtmltopdf - https://github.com/JazzCore/python-pdfkit/wiki/Installing-wkhtmltopdf

Can someone please advise on above error?

Seems like a damaged installation, have you tried to run/re-run a bench update?

@trentmu I believe the company who is hosting the application will have to install wkhtmltopdf. We will inform them accordingly.
You have also mentioned about run/re-run a bench update? Can you please clarify if as a user I can perform this procedure or is it still the company hosting the application who shall do that?

Thanks in Advance.

If they have to do the install, then it is most likely that you don’t/won’t be able to run the update without their help, but I would guess that you should have access to both install & update functionality on your system (it’s yours!).
Maybe host at ERPNext?