[horde] syncml server error

[munzli]

hi

i recently checked out a newer horde and for some reason synchronizing  
with syncml doesn't work anymore.  it used to work with the nokia e65 
and a sony ericsson k800i.
somehow it works if the phone calendar is empty on the k800 but as soon 
as i have an entry that needs to be synced from the phone the server 
quits. 

the error_log shows:
[Fri Jun 01 14:54:50 2007] [error] [client 213.55.130.205] PHP Fatal 
error:  Call to undefined method SyncML_ContentHandler::raiseError() in 
/data1/www/server/lib/php/XML/WB
XML/Decoder.php on line 252

and the syncml_log.txt:
DEBUG:  Backend of class SyncML_Backend_Horde created
DEBUG:  New session created: 498c410be6352900c0b2753c25c71086
DEBUG:  Invalid authorization!
DEBUG:  authorized= version=2 msgid=1 source=IMEI:*************** 
target=http://sync.lab.olmero.ch:6665/horde/rpc.php user= charset=UTF-8 
wbxml=1
DEBUG:  Received Final from client.
DEBUG:  Sending Final to client.
DEBUG:  SyncML: return message completed
DEBUG:  Finished at 2007-06-01 14:54:43. Packet logged in 
/tmp/sync/syncml_server_10.wbxml


DEBUG:  Backend of class SyncML_Backend_Horde created
DEBUG:  Existing session continued: 498c410be6352900c0b2753c25c71086
DEBUG:  checking auth for user=mknobel
DEBUG:  authorized=1 version=2 msgid=2 source=IMEI:*************** 
target=http://sync.lab.olmero.ch:6665/horde/rpc.php user=mknobel 
charset=UTF-8 wbxml=1
DEBUG:  previous sync found for database: calendar; client-ts: 7
DEBUG:  SyncML: Anchor match, TwoWaySync since 7
DEBUG:  Create new sync for calendar; synctype=200
DEBUG:  HandleFinal for state=0
DEBUG:  Received Final from client.
DEBUG:  Sending Final to client.
DEBUG:  SyncML: return message completed
DEBUG:  Finished at 2007-06-01 14:54:47. Packet logged in 
/tmp/sync/syncml_server_11.wbxml

i reverted to an older cvs version and it still doesn't work, could it 
be an error in the configs?

thanks for any help
cheers
munzli