BluFi example code not working

[raykwl]

When I tested the BluFi example code with its iOS demo App with encryption enabled. I got following errors reported from ESP32,

E (286562) BT_BTC: btc_blufi_recv_handler decrypt error -1
E (286562) BLUFI: BLUFI report error, error code 2
E (287162) BLUFI: blufi_dh_negotiate_data_handler make public failed -12416
E (287162) BLUFI: BLUFI report error, error code 8

Do I miss something in setting up the example code?