Found and solved a critical error in the SP Page Builder search plugin !
/plugins/seach/sppagebuilder/sppagebuilder.php Line 96 :
case 'oldest':
$order = 's.created_time ASC';
is WRONG !
and must be corrected to :
case 'oldest':
$order = 's.created_on ASC';
Please correct asap so that the next updates do NOT reintroduce this error again !
Thank you !