The “NTC 100K beta 3950” temperature sensor is deprecated and will be removed in the near future.
In order to solve the problem search in your config for
sensor_type: NTC 100K beta 3950and replace it with
sensor_type: Generic 3950.
Most users will find the “Generic 3950” temperature sensor more accurate. Anyway you can continue to use the older (typically less accurate) definition. Therefor define a custom thermistor with
resistance1: 100000, and
sensor_type: temperature_hosteverywhere in your config.