Getting error when pdf generator

Traceback (most recent call last):
  File "/home/frappe/frappe-bench/apps/frappe/frappe/", line 62, in application
    response = frappe.api.handle()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/", line 53, in handle
    return frappe.handler.handle()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/", line 22, in handle
    data = execute_cmd(cmd)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/", line 53, in execute_cmd
    return, **frappe.form_dict)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/", line 935, in call
    return fn(*args, **newargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/utils/", line 48, in download_pdf
    frappe.local.response.filecontent = get_pdf(html)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/utils/", line 17, in get_pdf
    pdfkit.from_string(html, fname, options=options or {})
  File "/home/frappe/frappe-bench/env/src/pdfkit/pdfkit/", line 68, in from_string
    return r.to_pdf(output_path)
  File "/home/frappe/frappe-bench/env/src/pdfkit/pdfkit/", line 143, in to_pdf
    raise IOError("wkhtmltopdf exited with non-zero code {0}. error:\n{1}".format(exit_code, stderr.decode("utf-8")))
IOError: wkhtmltopdf exited with non-zero code 1. error:
The switch --header-html, is not support using unpatched qt, and will be ignored.The switch --footer-html, is not support using unpatched qt, and will be ignored.Unknown long argument --background

  wkhtmltopdf 0.9.9

  wkhtmltopdf [OPTIONS]... 
 [More input files] 
  Converts one or more HTML pages into a PDF document, *not* using wkhtmltopdf
  patched qt.

General Options:
      --collate                       Collate when printing multiple copies
      --copies                Number of copies to print into the pdf                                      file (default 1)
      --extended-help                 Display more extensive help, detailing                                      less common command switches
  -h, --help                          Display help
  -O, --orientation      Set orientation to Landscape or Portrait
  -s, --page-size               Set paper size to: A4, Letter, etc.
      --password            HTTP Authentication password
  -p, --proxy                  Use a proxy
  -q, --quiet                         Be less verbose
      --username            HTTP Authentication username
  -V, --version                       Output version information an exit
Reduced Functionality:
  This version of wkhtmltopdf has been compiled against a version of QT without
  the wkhtmltopdf patches. Therefore some features are missing, if you need
  these features please use the static version.

  Currently the list of features only supported with patch QT includes:

 * Printing more then one HTML document into a PDF file.
 * Running without an X11 server.
 * Adding a document outline to the PDF file.
 * Adding headers and footers to the PDF file.
 * Generating a table of contents.
 * Adding links in the generated PDF file.
 * Printing using the screen media-type.
 * Disabling the smart shrink feature of webkit.

  If you experience bugs or want to request new features please visit 
  , if you have any problems
  or comments please feel free to contact me: see

hi for posts with what to try, search up this:

–header-html, is not support using unpatched qt, and will be ignored

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