Web Client not able to open attachment and attach document

Hi Expert,

Customer is using SAP Business One 10.0 mentation for SAP HANA (10.00.191) FP 2202 (64-bit)

On webclient page, erstwhile effort to unfastened pdf attachment, it springiness mistake arsenic below;

When one effort to upload papers via webportal, it support loading endless.

This is the attachment folder and one person equine this folder arsenic below;

What other bash one miss?

Thank you.

Best regards,

Tan Su Hsiang