I cant able to create invoice in Odoo v15. I am facing this issue.

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 698, in dispatch
    result = self._call_function(**self.params)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 368, 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 357, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 921, in __call__
    return self.method(*args, **kw)
  File "/home/odoo/src/odoo/15.0/odoo/http.py", line 546, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/odoo/15.0/addons/web/controllers/main.py", line 1328, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "/home/odoo/src/odoo/15.0/addons/web/controllers/main.py", line 1316, 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/sale_timesheet/wizard/sale_make_invoice_advance.py", line 52, in create_invoices
    return super(SaleAdvancePaymentInv, self).create_invoices()
  File "/home/odoo/src/odoo/15.0/addons/sale/wizard/sale_make_invoice_advance.py", line 162, in create_invoices
    sale_orders._create_invoices(final=self.deduct_down_payments)
  File "/home/odoo/src/odoo/15.0/addons/sale_timesheet/models/sale_order.py", line 112, in _create_invoices
    moves = super()._create_invoices(grouped=grouped, final=final, date=date)
  File "/home/odoo/src/odoo/15.0/addons/sale/models/sale_order.py", line 764, in _create_invoices
    (0, 0, line._prepare_invoice_line(
  File "/home/odoo/src/enterprise/15.0/sale_subscription/models/sale_order.py", line 193, in _prepare_invoice_line
    previous_date = next_date - relativedelta(**{periods[self.subscription_id.recurring_rule_type]: self.subscription_id.recurring_interval})
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 654, 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
TypeError: unsupported operand type(s) for -: 'bool' and 'relativedelta'