FIX non catched error (see issue #120)

custom_components/versatile_thermostat/climate.py

@@ -2301,7 +2301,7 @@ async def _async_control_heating(self, force=False, _=None):
                     under.startup()
                 except UnknownEntity as err:
                     # still not found, we an stop here
-                    raise err
+                    return
 
         # Check overpowering condition
         # Not necessary for switch because each switch is checking at startup