Mohib, Currently, I used oxd server with oxd-node library version 3.0.1 for my production service, it worked. Now I have tried to oxd-server with oxd node library version 3.1.3 but I found the error as above post. I don't know that what is root cause of the problem. However, I have plan to upgrade the oxd-server with version 3.1.3, if I can solve this problem. Could you please advice me for solving this problem? Thank you very much.