Bug when creating a budget (Button SAVE)

[utillity]

Hi,

I just installed this module on my Odoo 12 CE (on premise). Going to Invoices > Accounting > Budget and creating a test budget, the following error message appeared on pressing SAVE:

Error:
Odoo Server Error

Traceback (most recent call last):
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/api.py", line 1039, in get
    value = self._data[key][field][record.id]
KeyError: 1

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/fields.py", line 963, in __get__
    value = record.env.cache.get(record, self)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/api.py", line 1041, in get
    raise CacheMiss(record, field)
odoo.exceptions.CacheMiss: ('crossovered.budget.lines(1,).practical_amount', None)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/http.py", line 654, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/tools/pycompat.py", line 87, in reraise
    raise value
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/http.py", line 696, in dispatch
    result = self._call_function(**self.params)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/service/model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/http.py", line 337, in checked_call
    result = self.endpoint(*a, **kw)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/http.py", line 939, in __call__
    return self.method(*args, **kw)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/http.py", line 517, in response_wrap
    response = f(*args, **kw)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/addons/web/controllers/main.py", line 962, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/addons/web/controllers/main.py", line 954, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/api.py", line 749, in call_kw
    return _call_kw_multi(method, model, args, kwargs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/api.py", line 736, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/models.py", line 2780, in read
    data[record][name] = convert(record[name], record, use_name_get)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/models.py", line 5065, in __getitem__
    return self._fields[key].__get__(self, type(self))
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/fields.py", line 967, in __get__
    self.determine_value(record)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/fields.py", line 1078, in determine_value
    self.compute_value(recs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/fields.py", line 1034, in compute_value
    self._compute_value(records)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/fields.py", line 1025, in _compute_value
    getattr(records, self.compute)()
  File "/opt/bitnami/apps/odoo/data/addons/12.0/account_budget_oca/models/account_budget.py", line 154, in _compute_practical_amount
    (line.analytic_account_id.id, date_from, date_to, acc_ids,)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/sql_db.py", line 148, in wrapper
    return f(self, *args, **kwargs)
  File "/opt/bitnami/apps/odoo/lib/odoo-12.0.post20190118-py3.7.egg/odoo/sql_db.py", line 225, in execute
    res = self._obj.execute(query, params)
psycopg2.ProgrammingError: function to_date(date, unknown) does not exist
LINE 5:                         AND (date between to_date('2019-06-0...
                                                  ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

[utillity]