Steps to reproduce: - Go to Employee - Open the Employee profile and click on Work information. - In the Organization Chart Below the hierarchy See All button is visible. - Click on the 'See All' button. Currently, when we click on the ``see all'' button of the organization chart, the traceback comes. Fixed it in this commit. task-3133047 closes odoo/odoo#110476 X-original-commit: 9f4e1fa80dc75900fb8a2c979568c3ab8f65a635 Signed-off-by: Kevin Baptiste <kba@odoo.com>