gistfile1.txt

com.atlassian.jira.exception.CreateException: Could not load FunctionProvider class
	at com.atlassian.jira.issue.managers.DefaultIssueManager.createIssue(DefaultIssueManager.java:472)
	at com.atlassian.jira.issue.managers.DefaultIssueManager.createIssue(DefaultIssueManager.java:383)
	at com.atlassian.jira.issue.managers.DefaultIssueManager.createIssue(DefaultIssueManager.java:480)
	at com.atlassian.jira.service.util.handler.CreateIssueHandler.handleMessage(CreateIssueHandler.java:232)
	at com.atlassian.jira.service.util.handler.CreateOrCommentHandler.handleMessage(CreateOrCommentHandler.java:132)
	at com.atlassian.jira.service.services.mail.MailFetcherService.run(MailFetcherService.java:216)
	at com.atlassian.jira.service.JiraServiceContainerImpl.run(JiraServiceContainerImpl.java:60)
	at com.atlassian.jira.service.ServiceRunner.execute(ServiceRunner.java:47)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:195)
	at com.atlassian.multitenant.quartz.MultiTenantThreadPool$MultiTenantRunnable.run(MultiTenantThreadPool.java:72)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)
Caused by: com.atlassian.jira.workflow.WorkflowException: Could not load FunctionProvider class
	at com.atlassian.jira.workflow.OSWorkflowManager.createIssue(OSWorkflowManager.java:835)
	at com.atlassian.jira.issue.managers.DefaultIssueManager.createIssue(DefaultIssueManager.java:461)
	... 10 more
Caused by: com.opensymphony.workflow.WorkflowException: Could not load FunctionProvider class
	at com.opensymphony.workflow.AbstractWorkflow.executeFunction(AbstractWorkflow.java:865)
	at com.opensymphony.workflow.AbstractWorkflow.transitionWorkflow(AbstractWorkflow.java:1265)
	at com.opensymphony.workflow.AbstractWorkflow.initialize(AbstractWorkflow.java:618)
	at com.atlassian.jira.workflow.OSWorkflowManager.createIssue(OSWorkflowManager.java:805)
	... 11 more

I got the same error in my jira server instance. Do you manage to fix this error. Thanks!.