Importing Customers groups PrestaShopWebServiceError: 'Unsupported parameters: date_filter'

Hello, installed openerp 6.1, PS 1.51, new branches and prestapyt. Sync referential setting and impor products works. But when i'm trying import customers groups i get this :

Server Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/openerp/addons/web/common/http.py", line 593, in send
    return openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/usr/lib/pymodules/python2.7/openerp/netsvc.py", line 360, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/usr/lib/pymodules/python2.7/openerp/service/web_services.py", line 586, in dispatch
    res = fn(db, uid, *params)
  File "/usr/lib/pymodules/python2.7/openerp/osv/osv.py", line 167, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/usr/lib/pymodules/python2.7/openerp/osv/osv.py", line 121, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/osv/osv.py", line 176, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/usr/lib/pymodules/python2.7/openerp/osv/osv.py", line 164, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base_sale_multichannels/external_referential.py", line 51, in import_customer_groups
    self.import_resources(cr, uid, ids, 'res.partner', context=context)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base_external_referentials/external_osv.py", line 557, in import_resources
    res = self.pool.get(resource_name)._import_resources(cr, uid, external_session, defaults, method=method, context=context)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base_external_referentials/external_osv.py", line 587, in _import_resources
    ext_ids = self._get_external_resource_ids(cr, uid, external_session, resource_filter, mapping=mapping, context=context)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base_external_referentials/decorator.py", line 49, in wrapped
    return func(self, cr, uid, argument, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/addons/prestashoperpconnect/prestashop_osv.py", line 147, in _get_external_resource_ids
    return external_session.connection.search(ext_resource, options = resource_filter)
  File "/usr/local/lib/python2.7/dist-packages/prestapyt/prestapyt.py", line 409, in search
    search(resource, options=options)
  File "/usr/local/lib/python2.7/dist-packages/prestapyt/prestapyt.py", line 268, in search
    return self.get(resource, options=options)
  File "/usr/local/lib/python2.7/dist-packages/prestapyt/prestapyt.py", line 284, in get
    self._validate_query_options(options)
  File "/usr/local/lib/python2.7/dist-packages/prestapyt/prestapyt.py", line 211, in _validate_query_options
    % (', '.join(tuple(unsupported)),))
PrestaShopWebServiceError: 'Unsupported parameters: date_filter'

Any idea where to look for answer?