Econa custom field option not showing up when creating a new custom field

On a new project / website I need to add an Econa custom field. But when I create a new custom field the 'Econa' is not showing up in de list of options. I checked the plugin 'Fields - Econa' and it is present an active.

Am I missing something?

On this site we have also installed a custom extension that also has the option to add custom fields to it. Maybe we did something that would cause the Econa option not to show up? Or do you have another suggestion?

Joomla 4.4.1
PHP 8.1.26
Econa 1.8.7

I uninstalled Econa and reinstalled it. After this the custom field was again available to select. So it seems to have been fixed.