Hello , 

This module is not available for odoo 16 ? 

after installing the modules, this error appear every time we invoice 

Traceback (most recent call last):
  File "/home/odoo/src/odoo/15.0/odoo/models.py", line 5332, in _update_cache
    field_values = [(fields[name], value) for name, value in values.items()]
  File "/home/odoo/src/odoo/15.0/odoo/models.py", line 5332, in <listcomp>
    field_values = [(fields[name], value) for name, value in values.items()]
KeyError: 'stamp_tax'

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

Traceback (most recent call last):
  File "/home/odoo/src/odoo/15.0/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
    result = request.dispatch()
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 687, in dispatch
    result = self._call_function(**self.params)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 359, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/odoo/src/odoo/15.0/odoo/service/model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 348, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 916, in __call__
    return self.method(*args, **kw)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 535, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/odoo/15.0/addons/web/controllers/main.py", line 1335, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/home/odoo/src/odoo/15.0/addons/web/controllers/main.py", line 1327, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/odoo/src/odoo/15.0/odoo/api.py", line 464, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/home/odoo/src/odoo/15.0/odoo/api.py", line 451, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/home/odoo/src/odoo/15.0/addons/account/models/account_move.py", line 1128, in onchange
    return super(AccountMove, self.with_context(recursive_onchanges=False)).onchange(values, field_name, field_onchange)
  File "/home/odoo/src/odoo/15.0/odoo/models.py", line 6402, in onchange
    record = self.new(initial_values, origin=self)
  File "/home/odoo/src/odoo/15.0/odoo/models.py", line 5692, in new
    record._update_cache(values, validate=False)
  File "/home/odoo/src/odoo/15.0/odoo/models.py", line 5334, in _update_cache
    raise ValueError("Invalid field %r on model %r" % (e.args[0], self._name))
Exception

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

Traceback (most recent call last):
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 643, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 301, in _handle_exception
    raise exception.with_traceback(None) from new_cause
ValueError: Invalid field 'stamp_tax' on model 'account.move'

Dear sir,

We fix two Problems :

1/ When we create credit note

2/ When we change date in draft invoice

Thank you