Cepstral Community

Hi, can you help me about install my licence Alejandra-8Khz into Asterisk11(Issabel4)

i have been make this configure
5. cd Cepstral_Alejandra-8kHz_x86-64-linux_6.0.1
6. ./install.sh
7. swift --reg-voice (my licence success)
8. Yum install git
9. git clone https://github.com/awayment/app_swift
10. cd app_swift/Asterisk_[1,8 / 11 going into Asterisk11 folder]
.
.
.

finish install , but this error en CLI


-- Executing [6486@from-internal:1] NoOp("IAX2/5001-593", "TTS swift") in new stack
-- Executing [6486@from-internal:2] Swift("IAX2/5001-593", "Testing TTS with Cepstral-Alejandra") in new stack
[2017-06-10 19:00:12] DEBUG[12881][C-00000001]: app_swift.c:336 app_exec: Text to Speak : Esto es una prueba con cepstral
[2017-06-10 19:00:12] DEBUG[12882]: app_swift.c:177 swift_cb: audio callback
[2017-06-10 19:00:12] DEBUG[12882]: app_swift.c:211 swift_cb: audio easy write, 65535 avail to end 65535 totalavail
[2017-06-10 19:00:12] DEBUG[12882]: app_swift.c:177 swift_cb: audio callback
[2017-06-10 19:00:12] DEBUG[12882]: app_swift.c:211 swift_cb: audio easy write, 63487 avail to end 63487 totalavail
issabel*CLI>
Disconnected from Asterisk server
Asterisk cleanly ending (0).
Executing last minute cleanups
/usr/sbin/safe_asterisk: línea 170: 12820 Violación de segmento nice -n $PRIORITY "${ASTSBINDIR}/asterisk" -f ${CLIARGS} ${ASTARGS} > /dev/null 2>&1 < /dev/null

what happen, cepstral working with asterisk 11.25.0 ????