Hello,

When i click print report for any standart report, i get this error.

Below is the error trace:

Traceback (most recent call last):
  File "/home/portaladmin/PycharmProjects/odoo-dev/custom/web/controllers/main.py", line 2053, in report_download
    response = self.report_routes(reportname, docids=docids, converter=converter, context=context)
  File "/home/portaladmin/PycharmProjects/odoo-dev/server/odoo/http.py", line 537, in response_wrap
    response = f(*args, **kw)
  File "/home/portaladmin/PycharmProjects/odoo-dev/custom/web/controllers/main.py", line 1986, in report_routes
    pdf = report.with_context(context)._render_qweb_pdf(docids, data=data)[0]
  File "/home/portaladmin/PycharmProjects/odoo-dev/server/odoo/addons/base/models/ir_actions_report.py", line 827, in _render_qweb_pdf
    pdf_content = self._run_wkhtmltopdf(
  File "/home/portaladmin/PycharmProjects/odoo-dev/server/odoo/addons/base/models/ir_actions_report.py", line 455, in _run_wkhtmltopdf
    head_file.write(header)
TypeError: a bytes-like object is required, not 'Markup'