500 error, Coldfusion pages not loading

Not sure what happened,  but now all my domains don't load anymore.  I get this error.  I'm at a lost and not even sure where to start to troubleshoot.  Can someone please help?  This is what is showing on my page when it loads.

Thanks in advance.

Jimmy

at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)

at coldfusion.CfmServlet.service(CfmServlet.java:219)

at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:303)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42 )

at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:437)

at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:197)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.jav a:625)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Thread.java:722)