Error: Call to a member function value() on bool
  File "/app/source/vendor/themes/planet4-master-theme/src/Features.php", line 206, in P4\MasterTheme\Features::P4\MasterTheme\{closure}
    return [ $f['id'] => $cmb->get_field( $f['id'] )->value() ];
  File "/app/source/vendor/themes/planet4-master-theme/src/Features.php", line 208, in P4\MasterTheme\Features::on_pre_process
    self::get_fields()
  File "/wp-content/plugins/cmb2/includes/CMB2.php", line 850, in CMB2::pre_process
    do_action( "cmb2_{$object_type}_process_fields_{$this->cmb_id}", $this, $this->object_id() );
  File "/wp-content/plugins/cmb2/includes/CMB2.php", line 776, in CMB2::process_fields
    $this->pre_process();
  File "/wp-content/plugins/cmb2/includes/CMB2.php", line 757, in CMB2::save_fields
    $this->process_fields();
...
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