We upgrade our Stash 3.6 to Bitbucket 5.6, then “Stash Branch Parameter” is not working now (It can work before), the Repository is empty in "Stash Branch Parameter", and got the error. See my attached screenshot.

I checked the Jenkins log, see the error message:

Jan 29, 2018 12:53:04 AM org.eclipse.jetty.util.log.JavaUtilLog warn

WARNING: Error while serving https://server:8443/job/test-jenkins/descriptorByName/org.jenki

nsci.plugins.StashBranchParameter.StashBranchParameterDefinition/fillRepositoryItems

java.lang.reflect.InvocationTargetException

Could you please investigate? Any help will be appreciated.