error listener VersionREasleaseEvent

[Ruslan]

I have listener 

import com.atlassian.jira.bc.issue.IssueService

import com.atlassian.jira.issue.comments.CommentManager

import com.atlassian.jira.issue.IssueInputParametersImpl

import com.atlassian.jira.user.ApplicationUser

import com.atlassian.jira.workflow.JiraWorkflow

import com.atlassian.jira.workflow.WorkflowManager

import com.atlassian.jira.event.project.VersionReleaseEvent

import com.atlassian.jira.component.ComponentAccessor

WorkflowManager workflowManager = ComponentAccessor.getWorkflowManager()

ApplicationUser currentUser = ComponentAccessor.getUserManager().getUserByName("JiraBot")

final ACTION_ID_TO_CLOSE = 811

final CommentManager commentManager = ComponentAccessor.getCommentManager()

IssueService issueService = ComponentAccessor.getIssueService()

if (event instanceof VersionReleaseEvent)

{

    def event = event as VersionReleaseEvent

    def nameVersion = event.version.getName()

    Jql newjql = new Jql();

    def issues = newjql.getIssuesByJQL("fixVersion ~'${nameVersion}'")

    issues.each{

        it->

            JiraWorkflow workflow = workflowManager.getWorkflow(it)

            def transitionValidationResult = issueService.validateTransition(currentUser, it.id, ACTION_ID_TO_CLOSE, new IssueInputParametersImpl())

            try {

                issueService.transition(currentUser, transitionValidationResult)

            }

            catch(e) {

                commentManager.create(issue, currentUser, e.toString(), true)

            }

    }

}

It work, but he close only 2 issues, 1 issue have error

2022-08-16 15:26:55,172 ERROR [runner.AbstractScriptListener]: *************************************************************************************
2022-08-16 15:26:55,173 ERROR [runner.AbstractScriptListener]: Script function failed on event: com.atlassian.jira.event.project.VersionReleaseEvent, file: null
groovy.lang.MissingPropertyException: No such property: issue for class: Script171
at Script171$_run_closure1.doCall(Script171.groovy:34)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at Script171.run(Script171.groovy:25)

pls help, i dont undestand error 

[Ruslan · Accepted solution]

the error occurred because a problem with another workflow got into the task type, i think my each broken