Fatal error:

When i submit form then i get fetal error
when i check line of code that is

foreach( $smart_tags as $key ) {
	      // For free version displaying error as entry id is zero.
         if( preg_match_all( '/entry_date format=\"(.+?)\"/', $key ) && $entry_id == 0 ) {
            continue;
         } else {
            $data[ $key ] = wpforms()->get( 'smart_tags' )->process('{' . $key . '}', $form_data, $fields, $entry_id);
         }
      }

And My Erroe is
Fatal error: Uncaught Error: Call to undefined method stdClass::process() in /home/hinfinit/hinfinitygroup.com/wp-content/plugins/gsheetconnector-wpforms/includes/class-wpforms-integration.php:376 Stack trace: #0 /home/hinfinit/hinfinitygroup.com/wp-includes/class-wp-hook.php(307): WPforms_Googlesheet_Services->entry_save(Array, Array, '10546', Array) #1 /home/hinfinit/hinfinitygroup.com/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #2 /home/hinfinit/hinfinitygroup.com/wp-includes/plugin.php(474): WP_Hook->do_action(Array) #3 /home/hinfinit/hinfinitygroup.com/wp-content/plugins/wpforms/includes/class-process.php(792): do_action('wpforms_process...', Array, Array, '10546', Array) #4 /home/hinfinit/hinfinitygroup.com/wp-content/plugins/wpforms/includes/class-process.php(390): WPForms_Process->entry_save(Array, Array, '10546', Array) #5 /home/hinfinit/hinfinitygroup.com/wp-content/plugins/wpforms/includes/class-process.php(92): WPForms_Process->process(Array) #6 /home/hinfinit/hinfinitygroup.com/wp- in /home/hinfinit/hinfinitygroup.com/wp-content/plugins/gsheetconnector-wpforms/includes/class-wpforms-integration.php on line 376

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