Crash of the smsbox

Hi guys!
I have a working kannel (1.4.3) with an emi interface to a provider - now, last week there were a big crash on kannel side. I analyzed the log files and saw this:

2011-02-09 20:55:16 [2553] [8] DEBUG: Octet string dump ends.
2011-02-09 20:55:16 [2553] [8] ERROR: Error writing 246 octets to fd 31:
2011-02-09 20:55:16 [2553] [8] ERROR: System error 104: Connection reset by peer
2011-02-09 20:55:16 [2553] [8] ERROR: Error writing 246 octets to fd 31:
2011-02-09 20:55:16 [2553] [8] ERROR: System error 32: Broken pipe
2011-02-09 20:55:16 [2553] [8] ERROR: Couldn't send request to <http://10.9.X.XX:YYYYY/dlr?rsp=4D52D4DC-146-079XXXXXXX,1297281316,1,Message+for+079XXXXXXX%2C+with+identification+110209185558+has+been+delivered+on+2011-02-09+at+18%3A55%3A58.>
2011-02-09 20:55:16 [2553] [8] DEBUG: Failed while sending request
2011-02-09 20:55:16 [2553] [8] PANIC: gwlib/conn.c:852: conn_unregister: Assertion `conn != NULL' failed.
2011-02-09 20:55:16 [2553] [8] PANIC: /usr/sbin/smsbox(gw_panic+0xcd) [0x808a33d]
2011-02-09 20:55:16 [2553] [8] PANIC: /usr/sbin/smsbox(conn_unregister+0x174) [0x807c8b4]
2011-02-09 20:55:16 [2553] [8] PANIC: /usr/sbin/smsbox() [0x8085ef7]
2011-02-09 20:55:16 [2553] [8] PANIC: /usr/sbin/smsbox() [0x807f565]
2011-02-09 20:55:16 [2553] [8] PANIC: /usr/sbin/smsbox() [0x808167d]
2011-02-09 20:55:16 [2553] [8] PANIC: /lib/tls/i686/cmov/libpthread.so.0(+0x596e) [0x8c896e]
2011-02-09 20:55:16 [2553] [8] PANIC: /lib/tls/i686/cmov/libc.so.6(clone+0x5e) [0x9a9a0e]
2011-02-09 20:56:12 [2565] [0] INFO: Added logfile `/var/log/kannel/nvkannel_smsbox.log' with level `0'.
2011-02-09 20:56:12 [2565] [0] INFO: Service global sender set as 'TEST'
2011-02-09 20:56:12 [2565] [0] INFO: Logging accesses to '/var/log/kannel/nvkannel_access.log'.
2011-02-09 20:56:12 [2565] [0] INFO: Started access logfile `/var/log/kannel/nvkannel_access.log'.
2011-02-09 20:56:12 [2565] [0] INFO: HTTP: Opening server at port 13003.
2011-02-09 20:56:12 [2565] [0] DEBUG: Started thread 1 (gwlib/fdset.c:poller)
2011-02-09 20:56:12 [2565] [0] DEBUG: Started thread 2 (gwlib/http.c:server_thread)
2011-02-09 20:56:12 [2565] [0] INFO: Set up send sms service at port 13003
2011-02-09 20:56:12 [2565] [0] DEBUG: Started thread 3 (gw/smsbox.c:sendsms_thread)
2011-02-09 20:56:12 [2565] [0] DEBUG: ----------------------------------------------
.....

It seems that something brought the smsbox to crash - I don't know why - I hope somebody of you can help me out. How can it be fixed? Is this bug allready known.

I would appreciate any help from you!!!!

thanks in advance

cheers

beatrice

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