Hello I have installed the medical model of odoo on my computer and with my admin account I have no problem but when I create a new user I can not access the model Appointment you voila the error

OdooOdoo Server ErrorTraceback (most recent call last):

File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\http.py", line 530, in _handle_exception File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\http.py", line 567, in dispatch File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\http.py", line 303, in _call_function File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\service\model.py", line 113, in wrapper File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\http.py", line 300, in checked_call File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\http.py", line 796, in __call__ File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\http.py", line 396, in response_wrap File "C:\Program Files (x86)\Odoo 8.0-20150511\server\openerp\addons\web\controllers\main.py", line 936, in call_kw File "C:\Program Files (x86)\Odoo 8.0-20150511\server\openerp\addons\web\controllers\main.py", line 928, in _call_kw File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\api.py", line 241, in wrapper File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\models.py", line 2085, in read_group File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\api.py", line 241, in wrapper File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\models.py", line 4510, in _apply_ir_rules File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\api.py", line 241, in wrapper File "C:\Program Files (x86)\Odoo 8.0-20150511\server\openerp\addons\base\ir\ir_rule.py", line 156, in domain_get File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\api.py", line 241, in wrapper File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\models.py", line 4455, in _where_calc File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\osv\expression.py", line 646, in __init__ File "C:\Program Files (x86)\Odoo 8.0-20150511\server\.\openerp\osv\expression.py", line 812, in parseValueError: Invalid field 'institution' in leaf "<osv.ExtendedLeaf: ('institution', 'child_of', False) on medical_appointm

thank you for helping me