I am trying to upgrade Appian version from 7.6 to 7.9 and encounter following er

I am trying to upgrade Appian version from 7.6 to 7.9 and encounter following errors when starting Jboss. Could anyone give a suggestion?

[Appian Timer - 0] ERROR com.appiancorp.core.timer.timers.TransientTopicHeartbeat - No acknowledgement from TransientTopic, forcing rules cache to be cleared now.

07:12:18,644 INFO [stdout] (Appian Timer - 1) 2015-05-22 07:12:18,643 [Appian Timer - 1] WARN com.appiancorp.common.sigar.SigarLoader - Sigar native library not found at /native/sigar/sigar-amd64-winnt.dll

07:12:18,699 INFO [stdout] (Appian Timer - 1) 2015-05-22 07:12:18,699 [Appian Timer - 1] WARN com.appiancorp.common.sigar.SigarLoader - Sigar native library not available. Some system metrics are not available on Windows.

07:13:01,688 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) JBAS013412: Timeout after [300] seconds waiting for service container stability. Operation will roll back. Step that fir...

OriginalPostID-150012

OriginalPostID-150012