https://community.appian.com/discussions/f/administration/10645/jboss-won-t-start-throws-unable-to-instantiate-personalization-userprofile-service-after-restartHi all, Anyone seen the below before on restart of JBoss, and anyone know how to resolve? No changes to configuration other than the first restart since changing conf.plugins.poll-interval=60 to 5. We&#39;ve reverted to 60 and issue persists. We&#39;ve beenen-USTelligent Community 12https://community.appian.com/thread/46469?ContentTypeID=1Thu, 29 Jun 2017 17:10:31 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:e9e9cdd6-1d51-4b85-94e3-0d87528b7bb2cazOkay, so the root cause is that I updated the version of appian-suiteapi.jar in lib. <br /> <br /> The solution is:<br /> <br /> 0. Stop Appian and JBoss <br /> 1. Revert to the last stable version of appian-suiteapi on this instance <br /> 2. Delete the application server cache (<a href="https://community.appian.com/support/w/kb/447/kb-1232-how-to-clear-the-application-server-cache)">community.appian.com/.../kb-1232-how-to-clear-the-application-server-cache)</a><br /> 3. If there&#39;s an undeployed file for your appian-ds in standalone, delete it<br /> 4. Restart Appian and JBoss<br /> <br /> Headline: don&#39;t update appian-suiteapi.jar to a newer version because your new plugin needs it!<div style="clear:both;"></div>https://community.appian.com/thread/46468?ContentTypeID=1Thu, 29 Jun 2017 16:06:57 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:58745182-4e9b-4005-9430-05f60314c3a3cazOops, should have added:<br /> <br /> Caused by: java.lang.ClassCastException: com.appiancorp.services.UserServiceContext cannot be cast to com.appiancorp.services.AuthorizationInterceptorProvider<br /> at com.appiancorp.services.ServiceManager.acquire(ServiceManager.java:268)<div style="clear:both;"></div>