Only the workflow supervisor or a user with sysadmin or superuser privileges can resume a halted workflow, paused activity, or work item. To resume an item, you must have the Change State permission on the item.
To resume a suspended item:
Navigate to the item.
Do one of the following, depending on the options available:
Click More>Document>Resume Lifecycle.
Check the file’s checkbox. Then select Tools>Lifecycle>Resume.
Click Resume.