Error:
Odoo Server Error

Traceback (most recent call last):
  File "/data/build/odoo/odoo/http.py", line 677, in dispatch
    result = self._call_function(**self.params)
  File "/data/build/odoo/odoo/http.py", line 353, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/data/build/odoo/odoo/service/model.py", line 93, in wrapper
    return f(dbname, *args, **kwargs)
  File "/data/build/odoo/odoo/http.py", line 346, in checked_call
    result = self.endpoint(*a, **kw)
  File "/data/build/odoo/odoo/http.py", line 922, in __call__
    return self.method(*args, **kw)
  File "/data/build/odoo/odoo/http.py", line 523, in response_wrap
    response = f(*args, **kw)
  File "/data/build/odoo/addons/web/controllers/main.py", line 1318, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "/data/build/odoo/addons/web/controllers/main.py", line 1306, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/data/build/odoo/odoo/api.py", line 394, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/data/build/odoo/odoo/api.py", line 381, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/data/build/odoo/addons/sms/wizard/sms_composer.py", line 171, in action_send_sms
    record[0][self.number_field_name] = self.recipient_single_number
  File "/data/build/odoo/odoo/models.py", line 5660, in __setitem__
    return self._fields[key].__set__(self, value)
Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/data/build/odoo/odoo/http.py", line 632, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/data/build/odoo/odoo/http.py", line 317, in _handle_exception
    raise exception.with_traceback(None) from new_cause
KeyError: False