KC868-A8 only with standard tasmota firmware possible

[DieterN]

Hello all
I have flashed my KC868-A8 with Tasmota32.de fw.(https://tasmota.github.io/install/)
it works.

When I will flah the KC868-A8 firmware(KC868-A8-Tasmota-firmware.bin) with this tool,
I get an error like this:
   

and the board has no function.
Then i use the tasmota.de fw again, flash works but without

Configuration - Configure PCF8574  menu.
So i cant use the relais
Please help.
best regards