What is causing this error?

[Martin]

Hi,

Testing centos on a test-machine using MS Version 4.60.8-1 and ClamAV 
0.90.3 and SpamAssassin 3.2.1 easy installation package. I'm using the 
clamavmodule.

Noticed the following error after every batch in the maillog:

Jun 26 10:52:03 antispam2 MailScanner[9212]: unable to open database 
file(1) at dbdimp.c line 402

Full log below:

Jun 26 10:51:53 antispam2 MailScanner[9212]: New Batch: Scanning 1 
messages, 2413 bytes
Jun 26 10:51:53 antispam2 MailScanner[9212]: Spam Checks: Starting
Jun 26 10:52:01 antispam2 MailScanner[9212]: Spam Checks completed at 
299 bytes per second
Jun 26 10:52:01 antispam2 MailScanner[9212]: Virus and Content Scanning: 
Starting
Jun 26 10:52:03 antispam2 MailScanner[9212]: Virus Scanning completed at 
1325 bytes per second
Jun 26 10:52:03 antispam2 MailScanner[9212]: unable to open database 
file(1) at dbdimp.c line 402
Jun 26 10:52:03 antispam2 MailScanner[9212]: Requeue: 17F07D4CAF8.66A9B 
to DDABDD4CB6B
Jun 26 10:52:03 antispam2 postfix/qmgr[6048]: DDABDD4CB6B: 
from=<xxxxxxxxx>, size=2165, nrcpt=1 (queue active)
Jun 26 10:52:03 antispam2 MailScanner[9212]: Uninfected: Delivered 1 
messages
Jun 26 10:52:03 antispam2 MailScanner[9212]: Virus Processing completed 
at 69187 bytes per second
Jun 26 10:52:03 antispam2 MailScanner[9212]: Batch completed at 243 
bytes per second (2413 / 9)
Jun 26 10:52:03 antispam2 MailScanner[9212]: Batch (1 message) processed 
in 9.92 seconds
Jun 26 10:52:03 antispam2 MailScanner[9212]: Logging message 
17F07D4CAF8.66A9B to SQL
Jun 26 10:52:03 antispam2 MailScanner[7816]: 17F07D4CAF8.66A9B: Logged 
to MailWatch SQL
Jun 26 10:52:03 antispam2 MailScanner[9212]: "Always Looked Up Last" 
took 0.01 seconds
Jun 26 10:52:03 antispam2 postfix/smtp[13123]: DDABDD4CB6B: 
to=<xxxxxxxxxx>, relay=xxxxxxxx[xxxxxxxxxx]:25, delay=11, 
delays=11/0.02/0/0.17, dsn=2.6.0, status=sent (250 2.6.0 
<xxxxxxxxxxxxx> Queued mail for delivery)
Jun 26 10:52:03 antispam2 postfix/qmgr[6048]: DDABDD4CB6B: removed


Any idea?