Can't create directory //swsoft/

[specimen@]

Hi there,

i deinstalled spassassin on the shell and after that, i got the following error when i wil start the updater in plesk:

Can't create directory //swsoft/

also when i try to start service management i got this error:

Service is not available now, probably your Plesk is misconfigured.
Contact Your provider for details.

Internal Plesk error occurred: WEB_Server_package parameter not defined in features list.

all other seems to work fine.

I use plesk 8.1 on debian 3.1 stable

hope somebody can help

regards

specimen