Displaying on Blauha.us /// Warning: Attempt to read property "src" on null in /home2/cocop1he/public_html/blauha.us/components/com_sppagebuilder/views/page/view.html.php on line 129 , How do I troubleshoot it

I went to line 129, this is what is availble ( //Include Site title):

$og_image = json_decode($this->item->og_image)->src;



            Im using Using Joomla 4.2.0, Helix Framework, SP PageBuilder 4.0.3