Adding custom tags issue

Hi,

Thanks for this great plugin!

I’ve got the pro version and have an issue when trying to add custom tags following your documentation:
Warning: Use of undefined constant getDataCallbackFn_place_tags – assumed ‘getDataCallbackFn_place_tags’ (this will throw an Error in a future version of PHP) in…
I tried adding custom tags for taxonomy and ACF field but the tags are not displayed in the back-office.
I use PHP 7.4.9, (PHP >= 7.4.0 needed for my theme).

Thanks!