Does not switch hvac modes

I have a thermostat for the radiator. It has two modes: scheduled and manual.
When using the card, I can only successfully turn off the thermostat. When other modes are enabled, an error occurs: “The climate/set_hvac_mode service could not be called. network error:(2008) command or value not support”.
And why “hvac_mode” has two “heat_cool” modes? Help me please !

What does Developer Tools show for hvac_modes: