Hi,
if you use Joomla 3.10.11 and SP PageBuilder 4.0.7 the AddOn Articles will not work.
Reason is to load a helper class in File
/components/com_sppagebuilder/addons/articles/site.php
use Joomla\Component\Fields\Administrator\Helper\FieldsHelper;
wich is in version 4 available.
Solution: Delete or comment out this row.
Is it possible to fix it in next Bugfix-Version?