After updating OpenERP V7 I cannot backup anymore from the web interface. Problem arises after updating the web part to 3987 and restarting the server (Ubuntu 12.04.2 server). Updating Ubuntu and the OpenERP server (to 5017) and addons (to 9273) parts have no influence, after that backup was still possible.
Error message:
Internal Server Error {"message": "OpenERP WebClient Error", "code": 300, "data": {"debug": "Client Traceback (most recent call last):\n File \"/opt/openerp/web/addons/web/http.py\", line 285, in dispatch\n r = method(self, **self.params)\n File \"/opt/openerp/web/addons/web/controllers/main.py\", line 812, in backup\n {'fileToken': int(token)}\nValueError: invalid literal for int() with base 10: ''\n", "type": "client_exception"}}
What is the solution?