postgres can't connect to specific database.

Hi all!

I have a very strange problem. Connect to specific database can't established.
This is the part of my log file:

Nov 11 18:09:00 application postgres[1401]: read_pg_options: all=0,verbose=1,plan=0,rewritten=0,query=1,syslog=2,locks=0
,hostlookup
Nov 11 18:09:00 application postgres[1401]: debug info:
Nov 11 18:09:00 application postgres[1401]: ^IUser = postgres
Nov 11 18:09:00 application postgres[1401]: ^IRemoteHost = localhost
Nov 11 18:09:00 application postgres[1401]: ^IRemotePort = 0
Nov 11 18:09:00 application postgres[1401]: ^IDatabaseName = isrts
Nov 11 18:09:00 application postgres[1401]: ^IVerbose = 2
Nov 11 18:09:00 application postgres[1401]: ^INoversion = f
Nov 11 18:09:00 application postgres[1401]: ^Itimings = f
Nov 11 18:09:00 application postgres[1401]: ^Idates = Normal
Nov 11 18:09:00 application postgres[1401]: ^Ibufsize = 2048
Nov 11 18:09:00 application postgres[1401]: ^Isortmem = 512
Nov 11 18:09:00 application postgres[1401]: ^Iquery echo = f
Nov 11 18:09:00 application postgres[1401]: InitPostgres

There are two new files in database directory
-rw------- 1 postgres postgres 18776064 Nov 11 18:09 core
-rw------- 1 postgres postgres 0 Nov 11 18:09 pg_internal.init

How can i decide my problem?
Any help would be greatly appreciated.

Natalya Makushina
mak(at)rtsoft(dot)msk(dot)ru