Customizer not showing correctly

Hello,

WordPress 5.3, Theme: Twenty twenty, no plugins active.

When I enter the customizer, the customizer’s inner controls do not show up, the website does not show up and my console says:

underscore.min.js?ver=1.8.3:1

Uncaught SyntaxError: Invalid or unexpected token
at new Function (<anonymous>)
at Function.v.template (underscore.min.js?ver=1.8.3:1)
at wp-util.min.js?ver=5.3:1
at i.renderContent (load-scripts.php?c=0&load[chunk_0]=wp-hooks,heartbeat,customize-controls,customize-widgets,accordion,wp-sanitize,customize-nav-menus,mce-view,imgareaselect,image-e&load[chunk_1]=dit,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,customize-models,customize-views,updates,quicktags,jquery-ui-positi&load[chunk_2]=on,jquery-ui-menu,jquery-ui-autocomplete,thickbox,media-upload&ver=5.3:3)
at Object.<anonymous> (load-scripts.php?c=0&load[chunk_0]=wp-hooks,heartbeat,customize-controls,customize-widgets,accordion,wp-sanitize,customize-nav-menus,mce-view,imgareaselect,image-e&load[chunk_1]=dit,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,customize-models,customize-views,updates,quicktags,jquery-ui-positi&load[chunk_2]=on,jquery-ui-menu,jquery-ui-autocomplete,thickbox,media-upload&ver=5.3:3)
at i (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate&ver=5.3:2)
at Object.add [as done] (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate&ver=5.3:2)
at Function.<anonymous> (load-scripts.php?c=0&load[chunk_0]=wp-hooks,heartbeat,customize-controls,customize-widgets,accordion,wp-sanitize,customize-nav-menus,mce-view,imgareaselect,image-e&load[chunk_1]=dit,jquery-ui-slider,jquery-touch-punch,iris,wp-color-picker,customize-models,customize-views,updates,quicktags,jquery-ui-positi&load[chunk_2]=on,jquery-ui-menu,jquery-ui-autocomplete,thickbox,media-upload&ver=5.3:3)
at i (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate&ver=5.3:2)
at Object.fireWith [as resolveWith] (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate&ver=5.3:2)

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