[vchkpw] no such user. URGENT!

[T. Albert]

hi,

i accidently deleted my /var/qmail, and now my vpopmail didnot recognize the 
virtual domains. i have a backup of my /var/qmail (not the recent one). and 
now some of my domains can't be recognize. how can i fix this ? OR 
is there a way i can rebuild my assign file ?