TYPO3 Core

The toggled icon is not visible. The JavaScript icon API throws the following error:

icons.js?bust=1693158860:109 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'ajaxUrls')
    at Icons.getIconRegistryCache (icons.js?bust=1693158860:109:720)
    at Icons.getIcon (icons.js?bust=1693158860:109:261)
    at IconElement.render (icon-element.js?bust=1693158860:13:1016)
    at IconElement.update (lit-element.js?bust=1693158860:6:304)
    at IconElement.performUpdate (reactive-element.js?bust=1693158860:6:4846)
    at IconElement.scheduleUpdate (reactive-element.js?bust=1693158860:6:4493)
    at IconElement._$Ej (reactive-element.js?bust=1693158860:6:4401)