I tried to add a purchase but odoo says that there is a sequence missing:
Odoo Server Error
Traceback (most recent call last):
  File "/opt/odoo12/odoo/odoo/http.py", line 654, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/odoo12/odoo/odoo/http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "/opt/odoo12/odoo/odoo/tools/pycompat.py", line 87, in reraise
    raise value
  File "/opt/odoo12/odoo/odoo/http.py", line 696, in dispatch
    result = self._call_function(**self.params)
  File "/opt/odoo12/odoo/odoo/http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/opt/odoo12/odoo/odoo/service/model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "/opt/odoo12/odoo/odoo/http.py", line 337, in checked_call
    result = self.endpoint(*a, **kw)
  File "/opt/odoo12/odoo/odoo/http.py", line 939, in __call__
    return self.method(*args, **kw)
  File "/opt/odoo12/odoo/odoo/http.py", line 517, in response_wrap
    response = f(*args, **kw)
  File "/opt/odoo12/odoo/addons/web/controllers/main.py", line 962, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/opt/odoo12/odoo/addons/web/controllers/main.py", line 954, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/opt/odoo12/odoo/odoo/api.py", line 747, in call_kw
    return _call_kw_model_create(method, model, args, kwargs)
  File "/opt/odoo12/odoo/odoo/api.py", line 727, in _call_kw_model_create
    result = method(recs, *args, **kwargs)
  File "<decorator-gen-231>", line 2, in create
  File "/opt/odoo12/odoo/odoo/api.py", line 430, in _model_create_single
    return create(self, arg)
  File "/opt/odoo12/odoo/addons/purchase/models/purchase.py", line 160, in create
    return super(PurchaseOrder, self).create(vals)
  File "<decorator-gen-112>", line 2, in create
  File "/opt/odoo12/odoo/odoo/api.py", line 451, in _model_create_multi
    return create(self, [arg])
  File "/opt/odoo12/odoo/addons/mail/models/mail_thread.py", line 273, in create
    threads = super(MailThread, self).create(vals_list)
  File "<decorator-gen-3>", line 2, in create
  File "/opt/odoo12/odoo/odoo/api.py", line 452, in _model_create_multi
    return create(self, arg)
  File "/opt/odoo12/odoo/odoo/models.py", line 3533, in create
    records = self._create(data_list)
  File "/opt/odoo12/odoo/odoo/models.py", line 3633, in _create
    cr.execute(query, params)
  File "/opt/odoo12/odoo/odoo/sql_db.py", line 148, in wrapper
    return f(self, *args, **kwargs)
  File "/opt/odoo12/odoo/odoo/sql_db.py", line 225, in execute
    res = self._obj.execute(query, params)
psycopg2.ProgrammingError: relation "purchase_order_id_seq" does not exist
LINE 1: ...ing_type_id", "state", "user_id") VALUES (nextval('purchase_...
                                                             ^
    I see in my database that there is no sequences for purchase. On my other database for an other client i do see the sequences. I already upgraded the modules purchase and restarted the server. But the sequences are not being added to the database. I know i can add them myself but i would rather let odoo fix it al because maybe i miss some other sequences too. Does anybody know where these sequences are made: purchase_order_id_seq, purchase_order_line_id_seq
