lovelace-slider-entity-row: Slider-entity-row doesn't work any more for fan

My Home Assistant version: 0.XXX.X

2022.4.4 My lovelace configuration method (GUI or yaml):

GUI/ lovelace-slider-entity-row 17.1.0

What I am doing:

What I expected to happen:

The slider is no more appearing …

What happened instead: Nothing shown

Minimal steps to reproduce:

type: entities
entities:
  - entity: fan.geothermie_soufflerie
    name: Soufflerie
    show_state: true
    type: custom:slider-entity-row
show_header_toggle: false
state_color: true
title: Soufflerie

# End of code

Error messages from the browser console:

---

By putting an X in the boxes ([X]) below, I indicate that I:

• [] Understand that this is a channel for reporting bugs, not a support forum (https://community.home-assistant.io/).
• [] Have made sure I am using the latest version of the plugin.
• [] Have followed the troubleshooting steps of the “Common Problems” section of https://github.com/thomasloven/hass-config/wiki/Lovelace-Plugins.
• [] Understand that leaving one or more boxes unticked or failure to follow the template above may increase the time required to handle my bug-report, or cause it to be closed without further action.