In a Spring boot project when I run the project on tomcat webserver it gives below exception. This is part of stacktrace, in last line it says "See server log for details", but I can not find where server log is to look up for. I checked logs file (I mean this address: apache-tomcat-8.5.9\logs) and this path is empty.

NOTE: It was running successfully but I don't what changes make it not to run successfully anymore.

28-Mar-2017 16:25:35.336 SEVERE [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file
28-Mar-2017 16:25:35.337 SEVERE [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
[2017-03-28 04:25:35,375] Artifact cardservice:war exploded: Error during artifact deployment. See server log for details.