TYPO3 Core

I'm getting the following TypeError:

TypeError: Argument 1 passed to TYPO3\CMS\Backend\Controller\Wizard\TableController::configurationStringToArray() must be of the type string, null given, called in /var/www/typo3/public/typo3/sysext/backend/Classes/Controller/Wizard/TableController.php on line 312

First I created a new content item and did not save it. I then changed the type of the content element to an element that contains a tableWizard. After I clicked on the button to edit the table I got the TypeError. I use TYPO3 10.4.17.

I defined the input field as follows:

      <flux:field
        name="settings.table" 
        label="LLL:EXT:name/Resources/Private/Language/locallang.xlf:flux.Table.fields.settings.table" 
        type="text" 
        config="{renderType: 'textTable'}" 
      />