problem to upload file in Windchill PDMlink

I am using Windchill PDMLink Release 12.1 and Datecode with CPS 12.1.0.2 Good morning, our users are having trouble uploading files to Windchill/Creo 8. When they try to save the file on the client, they get the following error: “HTTP Upload Failed.” “Content upload failed due to an invalid response from the server.” Today,after check the problem with users, we restarted the server where Windchill is installed, which also serves as “Intralink” for our plant’s site. After the restart, they were able to save a file once, but then the error reappeared. We need support to analyze and resolve this issue. Here are the errors that I faced 2026-06-25 15:39:06,660 ERROR [pool-3-thread-1] wt.fv.StandardFvService username- Exception while trying to delete physical folder null for rootFolder : null java.lang.NullPointerException 2026-06-25 15:39:06,660 ERROR [pool-3-thread-1] wt.fv.StandardFvService username - Exception occured in addRemoteAutoFolderComplete java.lang.NullPointerException 2026-06-25 15:39:06,660 ERROR [pool-3-thread-1] wt.wrmf lgaretto - Execution problem for Method addRemoteAutoFolderComplete in given class wt.fv.master.StandardMasterService java.lang.reflect.InvocationTargetException 2026-06-25 15:39:06,675 ERROR [pool-3-thread-1] wt.fv.StandardFvService$1CreateAutoFolder lgaretto - Can not invoke the method "addRemoteAutoFolderComplete" declared in class "wt.fv.master.StandardMasterService". Check the Method Server logs for more details. wt.wrmf.delivery.WTDeliveryException: wt.wrmf.delivery.WTDeliveryException: wt.wrmf.transport.WTTransportException: (wt.wrmf.delivery.deliveryResource/18) wt.wrmf.delivery.WTDeliveryException: Can not invoke the method "addRemoteAutoFolderComplete" declared in class "wt.fv.master.StandardMasterService". 2026-06-25 15:39:06,675 ERROR [pool-3-thread-1] wt.fv.StandardFvService$1CreateAutoFolder lgaretto - vault = replica_elbi, Site = main 2026-06-25 15:39:07,114 ERROR [ajp-nio-127.0.0.1-8011-exec-8] wt.fv.uploadtocache - (wt.fv.fvResource/UPLOAD_FAILED_ERROR_MESSAGE) wt.objectstorage.exception.ContentFileCanNotBeStoredException: ATTENZIONE: si è verificato un errore durante il caricamento del file. Contattare l'amministratore. Causa dell'errore: Nessuna cartella attiva 2026-06-25 15:39:07,114 ERROR [ajp-nio-127.0.0.1-8011-exec-5] wt.fv.uploadtocache - (wt.fv.fvResource/UPLOAD_FAILED_ERROR_MESSAGE) wt.objectstorage.exception.ContentFileCanNotBeStoredException: ATTENZIONE: si è verificato un errore durante il caricamento del file. Contattare l'amministratore. Causa dell'errore: Nessuna cartella attiva 2026-06-25 15:39:07,114 ERROR [ajp-nio-127.0.0.1-8011-exec-6] wt.fv.uploadtocache - (wt.fv.fvResource/UPLOAD_FAILED_ERROR_MESSAGE) wt.objectstorage.exception.ContentFileCanNotBeStoredException: ATTENZIONE: si è verificato un errore durante il caricamento del file. Contattare l'amministratore. Causa dell'errore: Nessuna cartella attiva 2026-06-25 15:39:07,161 ERROR [pool-3-thread-2] wt.wrmf - Execution problem for Method addRemoteAutoFolderComplete in given class wt.fv.master.StandardMasterService java.lang.reflect.InvocationTargetException 2026-06-25 15:39:07,161 ERROR [pool-3-thread-2] wt.fv.StandardFvService$1CreateAutoFolder - Error occured while creating sub folder at FileServer. Check the Method Server logs for more details. wt.wrmf.delivery.WTDeliveryException: wt.wrmf.delivery.WTDeliveryException: wt.wrmf.transport.WTTransportException: (wt.wrmf.delivery.deliveryResource/18) wt.wrmf.delivery.WTDeliveryException: Can not invoke the method "addRemoteAutoFolderComplete" declared in class "wt.fv.master.StandardMasterService".