Graph Export broken after enabeling Thold 0.4.9-3

[sumsum]

Good Morning

recently I upgraded Cacti from Verion 0.8.7g to the latest version 0.8.8a. Everything went fine so far.
When I enable the Thold Plugin the FTP export of the Graphs is broken. When disabled everything is fine again.

05/26/2013 06:16:19 AM - EXPORT FATAL ERROR: FTP Remote directory '/tmp/cact/vmonster/cacti-ftp-temp' does not exist!. Export can not continue.
05/26/2013 06:16:12 AM - SYSTEM THOLD STATS: Time:0.0024 Tholds:0 DownHosts:0
05/26/2013 06:16:12 AM - SYSTEM STATS: Time:11.1924 Method:cmd.php Processes:1 Threads:N/A Hosts:8 HostsPerProcess:8 DataSources:149 RRDsProcessed:92

Does this is coming from upgrading or is it a known issue? Well I could not found any hint in the forum about this.

Regards
Tom