I am getting two errors when I run definition in the 'Test models' section, as "Failed to read hstp file" and "The PDD file does not exist".

Hi all,
I generated hyperStudy file from Altair flux 2021 and imported it as a resource in Altair HyperStudy. Then I define input variables. When I run definition in the 'Test models' section, I get two errors as "Failed to read hstp file" and "The PDD file does not exist". The 'write' and 'execute' icons have green tick, but 'Extract' icon has red tick. Could you please tell me what does it mean? And how to clear these errors?