Entity sensor.last_measurement_1_0_14 (<class 'custom_components.solaredgeoptimizers.sensor.SolarEdgeOptimizersSensor'>) is using state class 'measurement' which is impossible considering device class ('date') it is using; Please update your configuration if your entity is manually configured, otherwise report it to the custom integration author.
Entity sensor.last_measurement_1_0_14 (<class 'custom_components.solaredgeoptimizers.sensor.SolarEdgeOptimizersSensor'>) is using state class 'measurement' which is impossible considering device class ('date') it is using; Please update your configuration if your entity is manually configured, otherwise report it to the custom integration author.