In the oasisconfig.properties file located in /CA/PAM/server/c2o/.config, scroll to the bottom of the file and add the line:
Restart the orchestrator. You should now be able to locate the offending instance and abort it.
After the instance has been handled, make sure to either comment out the line in oasisconfig.properties so that it reads as:
or change the value to false as:
or remove the line completely, and restart the orchestrator again for this to take affect.