Steps: - Open project. - Configuration -> Projects. - Click the collaborator's stat button. - Invite Collaborators. Issue: - Traceback comes ''frozendict' object is not callable' Cause: - The _context object is being treated as a callable function instead of a dictionary-like object. Reference PR: https://github.com/odoo/odoo/pull/119771 Fix: - Adding .get() so that it ensures that the value of 'default_project_id' is retrieved correctly from the _context object without treating it as a callable function. task-3422050 closes odoo/odoo#128246 Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>