!377 and 1374 error Ntds intersite messaging

[TomSojer]

I have the next problem
on server 2003 standard /DC,FileSrv,Wsus,dns,dhcp,aplication services configured/

i recive next errors constantly

source:NTDS Inter-site Messaging
event id:1374

The Intersite Messaging service request for the number of sites interconnected through the following transport failed.

Transport:
CN=IP,CN=Inter-Site Transports,CN=Sites,CN=Configuration,DC=zop,DC=local

Additional Data
Error value:
1168 Element not found.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

and

source:NTDS Inter-site Messaging
event id:1377

The Intersite Messaging service request for the number of sites interconnected through the following transport failed.

Transport:
CN=SMTP,CN=Inter-Site Transports,CN=Sites,CN=Configuration,DC=zop,DC=local

Additional Data
Error value:
1168 Element not found.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

I tried everything i could fiend but i couldnot solve it.If anyone knows how to fix this HELP PLEASE!!!!!!!!!!