Can't login to Proxmox 2.2-32 using HostBill

Using HostBill I can login to Proxmox 2.2-31 but not for Proxmox 2.2-32.
Is there any API changing in Proxmox 2.2-32? How to solve this issue w/o downgrade to 2.2.-31?

I also submit a Ticket to HostBill regarding to this issue.