Unable to Create project in BCC(createProjectForProcess Exception)

ATG BCC Exception Exception Details:   Logging Exception: /atg/epub/workflow/process/WorkflowProcessManager       Error executing action createProjectForProcess[] on process instance 81200003; deleting the process instance   CONTAINER:atg.process.ProcessException; SOURCE:atg.epub.project.InvalidStateException: Process status is in a state where a new project cannot be created. Why this error?  BCC...