Error: string value is None for dictionary value @ data['value']

[MnM001]

Hi,

I have some scripts, called via automations in HA to record the current volume of some Alexa devices.
It used to work fine, however, I did upgrades and now it doesn't work anymore.
I get this error now (when running the script):

Error: string value is None for dictionary value @ data['value']

I tries to figure it out but I have no idea.

This is the script that generates the error:

action: variable.update_sensor metadata: {} data: replace_attributes: false attributes: {} value: '{{ state_attr(''media_player.echodot_1'', ''volume_level'')}}' target: entity_id: sensor.tts_echodot_1_volume alias: Variables+History 'Update Sensor Variable' on tts_echo_1_volume
If you could let me know how to fix it that will be great.

Cheers.