[ic] Interchange server is unavailable

[sb at airdelights.com]

I performed a new installation of Interchange on Centos with apache
server and new installation of perl. Ran Interchange makecat and set up
catalog with mysql.  Everything seems to go fine. On restart of
Interchange I get this message:
[root at localhost ~]# interchange restart
Low traffic settings.
Calling UI......UI is loaded...
Interchange V5.5.0-200605230658
Running with new signals, external programs could be unreliable.
Re-run with environment variable PERL_SIGNALS set to "unsafe" to change
this.
Configuring catalog store...Using MySQL,
DSN=dbi:mysql:test_store...done.
The Interchange server is already running (process id 10151)

But when I go to the web page I get this message:
We're sorry, the Interchange server is unavailable...
We are out of service or may be experiencing high system demand. Please
try again soon. 

Can anyone suggest how I can solve this problem?