[Bug] OpenDesktop does not work on latest DAVx5

I installed DAVx5 from F-Droid in a new cellphone (Huawei POT-LX1T - with Google Services) and cannot set up “OpenDesktop” following the instructions.

The issue is the same as described recently by another user:

DAVx5 shows an error, and it is impossible to log-in.

DEBUG file provided by DAVx5: 7.2 KB file on MEGA

Can someone else reproduce ?