WooCommeece Error : Cannot read properties of null ( reading 'add' )

[SSPAGNAMN76]

Morning,
opening woocommerce with radio theme I got the following error :

How can I solve it?
Thanks

[ paste your jsfiddle link here ]

https://jsfiddle.net/sspagna/5amf0te7/2/

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Steps to reproduce the problem

1. Load home page of www.e-mixontech.it

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What is the expected behaviour?

No error in console

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What is observed behaviour?

error in console

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More Details

• Which browsers/versions does it happen on?
  All browser
• Which jQuery/Slick version are you using?
  All version
• Did this work before?
  No