Can't get DLR delivery report

Hello,

I’m using palySMS 1.4 the last version and everything work fine. I can send SMS but not delivery report.
This is my bearbox log below:

root@srvsmsc:~# tail /var/log/kannel/bearerbox.log
2016-08-17 10:28:29 [3521] [0] DEBUG: MO concatenated message handling enabled
2016-08-17 10:28:29 [3521] [0] INFO: DLR rerouting for smsc id disabled.
2016-08-17 10:28:29 [3521] [4] PANIC: /usr/sbin/bearerbox(gw_backtrace+0xce) [0x49dc2e]
2016-08-17 10:28:29 [3521] [4] PANIC: /usr/sbin/bearerbox(gw_panic+0x16f) [0x49ddaf]
2016-08-17 10:28:29 [3521] [4] PANIC: /usr/sbin/bearerbox() [0x416055]
2016-08-17 10:28:29 [3521] [4] PANIC: /usr/sbin/bearerbox() [0x49b283]
2016-08-17 10:28:29 [3521] [4] PANIC: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76fa) [0x7f6105aab6fa]
2016-08-17 10:28:29 [3521] [4] PANIC: /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f610461eb5d]
2016-08-17 10:28:29 [3521] [0] INFO: AT2[default]: configuration shows modemtype
2016-08-17 10:28:29 [3521] [0] DEBUG: AT2[default]: Reading modem definitions from </etc/kannel/kannel.conf>

Someone can help me to solve this issue to get delivery report .

Regards