Thermostat Souliss on Openhab2

H everyone,
I made a thermostat with ON / OFF relay and a DHT11, which works well on SoulissApp and openHab if this is installed on the pc as localhost.
I moved openhab on openhabian installed on Raspberry Pi 3 and I can also quickly see the status of the temperature sensor and relay status. The problem arises if I want to activate the relay from openhab as nothing happens, in practice the command is not received by Souliss

Thank you