Hello, anyone who can help me to solve this problem? I tried to open a new session in Point of Sale, but got failure message as below.

Traceback (most recent call last): File "D:\Odoo\server\odoo\http.py", line 1578, in _serve_db return service_model.retrying(self._serve_ir_http, self.env) File "D:\Odoo\server\odoo\service\model.py", line 134, in retrying result = func() File "D:\Odoo\server\odoo\http.py", line 1607, in _serve_ir_http response = self.dispatcher.dispatch(rule.endpoint, args) File "D:\Odoo\server\odoo\http.py", line 1804, in dispatch result = self.request.registry['ir.http']._dispatch(endpoint) File "D:\Odoo\server\odoo\addons\base\models\ir_http.py", line 140, in _dispatch result = endpoint(**request.params) File "D:\Odoo\server\odoo\http.py", line 698, in route_wrapper result = endpoint(self, *args, **params_ok) File "D:\Odoo\server\odoo\addons\web\controllers\dataset.py", line 42, in call_kw return self._call_kw(model, method, args, kwargs) File "D:\Odoo\server\odoo\addons\web\controllers\dataset.py", line 33, in _call_kw return call_kw(request.env[model], method, args, kwargs) File "D:\Odoo\server\odoo\api.py", line 461, in call_kw result = _call_kw_multi(method, model, args, kwargs) File "D:\Odoo\server\odoo\api.py", line 448, in _call_kw_multi result = method(recs, *args, **kwargs) File "D:\Odoo\server\odoo\addons\point_of_sale\models\pos_session.py", line 1564, in load_pos_data loaded_data[model] = self._load_model(model) File "D:\Odoo\server\odoo\addons\point_of_sale\models\pos_session.py", line 1556, in _load_model return loader(params()) File "D:\Odoo\server\odoo\addons\point_of_sale\models\pos_session.py", line 1850, in _get_pos_ui_res_currency return self.env['res.currency'].search_read(**params['search_params'])[0] IndexError: list index out of range