billl4

This is the line it refers to:
if( otw_post( 'otw_sbm_promotions', false ) && !empty( otw_post( 'otw_sbm_promotions', '' ) ) ){

Unfortunately, that did not work for me. The post you linked to addressed this file: otw_shortcode_tinymce_plugin.js, but my error message refers to a different file: otw_process_actions.php. I made the changes anyway, but I still get the error message on this line:
plugins/widgetize-pages-light/include/otw_process_actions.php on line 142