2018-12-31 00:49:40.025 59372 ERROR mistral.notifiers.default_notifier Exception: [9ad86428-59ca-4823-87ad-61915f61410d] Unable to publish event because st2 returned status code 500. {
2018-12-31 00:49:40.025 59372 ERROR mistral.notifiers.default_notifier "faultstring": "Internal Server Error"
2018-12-31 00:49:40.025 59372 ERROR mistral.notifiers.default_notifier }
2018-12-31 00:49:40.025 59372 ERROR mistral.notifiers.default_notifier
Please suggest the solution .