I have a problem when i try to delete a domain.

[garyok]

ERROR: 22P02: invalid input syntax for type oid: ""
LOCATION: oidin_subr, oid.c:44

this message appears when i try to delete database..

can someone helpme?

i already deleted the database through a ems sql manager and deleted the user too, because plesk didnt let me to do this, so how can i delete this "virtual database" ?