TypeError in ContentRepository when TYPO3 backend Cache is disabled

[mogensf]

This is not really a bug. But while having the TYPO3 backend cache disabled like this (in local dev-environment):

$globalCacheConfiguration = $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations'];
foreach ($globalCacheConfiguration as $cacheName => $cacheConfiguration) {
    $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations'][$cacheName]['backend'] = \TYPO3\CMS\Core\Cache\Backend\NullBackend::class;
}

We get the following issue when trying to create new content-elements:

When enabling the TYPO3 backend cache everything works like a charme.

TYPO3 11.5.38
Content-Defender 3.4.3
PHP 8.1.17

[IchHabRecht]

Hi @mogensf

Please see my comment #131 (comment)