data-server can't running

ikon@cmp2017app03:~/appian_svr/data-server/bin$ ./start.sh
0 [main] INFO com.appian.data.TopologyFactory  - Loading topology /home/ikon/appian_svr/data-server/conf/appian-topology.xml
207 [main] INFO com.appian.data.server.config.CustomPropertiesConfiguration  - Configuration file custom.properties does not exist. Default settings will be used.
215 [main] INFO com.appian.data.server.Watchdog  - Initializing log4j (processName=wd-5400, logsDir=/home/ikon/appian_svr/data-server/../logs/data-server) from /home/ikon/appian_svr/data-server/conf/log4j.properties
2018-06-25 09:52:17,442 wd-5400 [main] INFO  com.appian.data.server.JvmStarter - Starting JVM: /opt/java/jdk1.8.0_101/jre/bin/java -server -Duser.timezone=GMT -Xms64m -Xmx128m -Dds.home=/home/ikon/appian_svr/data-server -cp /home/ikon/appian_svr/data-server/lib/appian-data-server-classpath-0.80.0.jar com.appian.data.server.Watchdog -f
Killed