The standard PDF Balance Sheet report has stopped working in our Odoo 9 Installation.   The only recent change was to enable multi-company.

When attempting to run any balance sheet report the following error occurs:

Uncaught SyntaxError: Unexpected token \ in JSON at position 0https://odoo.xyz.com/web?#page=0&limit=80&view_type=list&model=account.move&action=181:1

Traceback: SyntaxError:

Unexpected token \ in JSON at position 0 at JSON.parse (<anonymous>) at HTMLIFrameElement.<anonymous> (https://odoo.xyz.com/web/content/6415-a6e0998/web.assets_common.js:2554:379) at HTMLIFrameElement.dispatch (https://odoo.xyz.com/web/content/6415-a6e0998/web.assets_common.js:740:451) at HTMLIFrameElement.elemData.handle (https://odoo.xyz.com/web/content/6415-a6e0998/web.assets_common.js:713:173)

Does anyone know why this is happening?