Unable to open a file attachment from a case using an activity
I tried to configure an activity to open an attachment from a case as in the activity steps in the file ActivitySteps.PNG The PageAttachFile is of Data-WorkAttach-File class I also prepared a case for testing purpose to which I add an attachment as we can see in the ClipboardCaseB-6002.PNG
When executing the activity from the context of the case B-6002, a Java Exception is fired stating: Java Exception: java.lang.RuntimeException: Encountered an error while executing a Scalar value query for Scalar, .pxLinkedRefTo, on page 'LinkPage' of type 'Link-Attachment' using 0 parameter(s) ([]).
I attached also a screen capture of the tracer and the tracer xml file (on txt format) It seems that the classs is not found, but I am not sure
Why am I having this error and how to address this issue?
Best regards,
Edit: I am working on a Standard Edition(localhost), so there is no client sensitive information shared (to the support team which deleted some files)