Royal Elementor Addons - Deprecated: urldecode(): Passing null to parameter #1 ($string) of type string is deprecated...

Overview of the issue

Users of the Royal Elementor Addons plugin may encounter a deprecated function error message when operating on newer PHP versions 8.1 and above:

Deprecated: urldecode(): Passing null to parameter #1 ($string) of type string is deprecated in .../wp-includes/post.php on line 5864

Workaround

Please, make sure of having a full site backup of your site before proceeding.

• Open …/wp-content/plugins/royal-elementor-addons/classes/utilities.php file.
• Look for line 396.
• Replace:

  		// tmp remove after 2 months
  		$templates_loop = new \WP_Query([
  			'post_type' => 'wpr_templates',
  			'name' => $template,
  			'posts_per_page' => 1,
  		]);
  		
  		if ( ! $templates_loop->have_posts() ) {
  			if ( defined('ICL_LANGUAGE_CODE') ) {
  				$original_post = get_page_by_path($template, OBJECT, 'wpr_templates');
  				if ( $original_post ) {
  					$original_post_id = $original_post->ID;
  					$language_code = ICL_LANGUAGE_CODE;
  				
  					$translated_post_id = icl_object_id($original_post_id, 'wpr_templates', false, $language_code);
  					
  					if ( $translated_post_id ) {
  						$translated_post = get_post($translated_post_id);
  						$translated_slug = $translated_post->post_name;
  					
  						if ( $translated_slug ) {
  							$template = $translated_slug;
  						} else {
  							$template = null;
  						}
  					}
  				}
  			} else {
  				$template = null;
  			}
  		} else {
  			$template = $template;
  		}
  

• With:

  		// Ensure template is not null or empty before querying the database
  		// compsupp-7576 fix
  		if (!empty($template)) {		
  			// tmp remove after 2 months
  			$templates_loop = new \WP_Query([
  				'post_type' => 'wpr_templates',
  				'name' => $template,
  				'posts_per_page' => 1,
  			]);
  			
  			if ( ! $templates_loop->have_posts() ) {
  				if ( defined('ICL_LANGUAGE_CODE') ) {
  					$original_post = get_page_by_path($template, OBJECT, 'wpr_templates');
  					if ( $original_post ) {
  						$original_post_id = $original_post->ID;
  						$language_code = ICL_LANGUAGE_CODE;
  					
  						$translated_post_id = icl_object_id($original_post_id, 'wpr_templates', false, $language_code);
  						
  						if ( $translated_post_id ) {
  							$translated_post = get_post($translated_post_id);
  							$translated_slug = $translated_post->post_name;
  						
  							if ( $translated_slug ) {
  								$template = $translated_slug;
  							} else {
  								$template = null;
  							}
  						}
  					}
  				} else {
  					$template = null;
  				}
  			} else {
  				$template = $template;
  			}
  
  		} // compsupp-7576 fix