After restarting the server , the "class not found exception" is occuring

I have a process-definition , that inserts something in DB every 2 minutes .

CMSEmailSendingAutomation

But , when I shutdown and then startup the server , it gives an error :


BASH COMMANDS :
sysadmin@testingubuntu:~/server/apache-tomcat-8.0.24/bin$ bash shutdown.sh
Using CATALINA_BASE: /home/sysadmin/server/apache-tomcat-8.0.24
Using CATALINA_HOME: /home/sysadmin/server/apache-tomcat-8.0.24
Using CATALINA_TMPDIR: /home/sysadmin/server/apache-tomcat-8.0.24/temp
Using JRE_HOME: /usr/lib/jvm/java-8-oracle
Using CLASSPATH: /home/sysadmin/server/apache-tomcat-8.0.24/bin/bootstrap.jar:/home/sysadmin/server/apache-tomcat-8.0.24/bin/tomcat-juli.jar
Java HotSpot™ 64-Bit Server VM warning: ignoring option PermSize=64m; support was removed in 8.0
Java HotSpot™ 64-Bit Server VM warning: ignoring option MaxPermSize=1024m; support was removed in 8.0
sysadmin@testingubuntu:~/server/apache-tomcat-8.0.24/bin$ bash startup.sh
Using CATALINA_BASE: /home/sysadmin/server/apache-tomcat-8.0.24
Using CATALINA_HOME: /home/sysadmin/server/apache-tomcat-8.0.24
Using CATALINA_TMPDIR: /home/sysadmin/server/apache-tomcat-8.0.24/temp
Using JRE_HOME: /usr/lib/jvm/java-8-oracle
Using CLASSPATH: /home/sysadmin/server/apache-tomcat-8.0.24/bin/bootstrap.jar:/home/sysadmin/server/apache-tomcat-8.0.24/bin/tomcat-juli.jar
Tomcat started.


After , server startup it shows an error of “java.lang.ClassNotFoundException”


Complete Logs :

https://pastebin.com/raw/PMTKNSZ6

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Have a look at Deploy bpmn with Java api fails to start the prcess after re deployment /server restart.