Javascript problem with customize for Twenty Seventeen theme

Hello and thanks for the plugin

I use the Twenty Seventeen theme that let you change in the page options from 2 to 1 column.
I couldn’t see this option and in the Firefox inspector i got this error for your plugin. If I desactivate the plugin, I can get the option.

Th error

Uncaught TypeError: textBlock.html() is undefined
    addReadmore https://xx/wp-content/plugins/cookie-law-info/public/js/cookie-law-info-public.js?ver=1.8.9:278
    privacyReadmore https://xx/wp-content/plugins/cookie-law-info/public/js/cookie-law-info-public.js?ver=1.8.9:302
    settingsPopUp https://xx/wp-content/plugins/cookie-law-info/public/js/cookie-law-info-public.js?ver=1.8.9:237
    attachEvents https://xx/wp-content/plugins/cookie-law-info/public/js/cookie-law-info-public.js?ver=1.8.9:142
    set https://xx/wp-content/plugins/cookie-law-info/public/js/cookie-law-info-public.js?ver=1.8.9:92
    <anonymous> https://xx/wp-content/plugins/cookie-law-info/public/js/cookie-law-info-public.js?ver=1.8.9:1133
    jQuery 8
cookie-law-info-public.js:278:17

Have a good day