Error on weewx trying to install

[Ruben Navarro Huedo]

Hello friends:

I am trying to install Weewx Remote Synchronization Plugin.
Using last weewx and mesowx public versions.

When i start weewx i get this error:

Feb 17 13:24:21 raspberrypi weewx[29514]: engine: Caught unrecoverable exception in engine:
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****  'archive_database'
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****  Traceback (most recent call last):
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****    File "/usr/share/weewx/weewx/engine.py", line 841, in main
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****      engine = engine_class(config_dict)
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****    File "/usr/share/weewx/weewx/engine.py", line 76, in __init__
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****      self.loadServices(config_dict)
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****    File "/usr/share/weewx/weewx/engine.py", line 140, in loadServices
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****      self.service_obj.append(weeutil.weeutil._get_object(svc)(self, config_dict))
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****    File "/usr/share/weewx/user/sync.py", line 80, in __init__
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****      self.archive_db_dict = self.config_dict['Databases'][self.config_dict['StdArchive']['archive_database']]
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****    File "/usr/lib/python2.7/dist-packages/configobj.py", line 554, in __getitem__
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****      val = dict.__getitem__(self, key)
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****  KeyError: 'archive_database'
Feb 17 13:24:21 raspberrypi weewx[29514]:     ****  Exiting.

Do you know where is the error?

A lot of thank's