Trying to add different logos for different pages using parse_query

Hi there,

I am building a site on my localhost and I am trying to add in different logos to different pages. I am using code that I got from the Generatepress support forums and it is working, however I am getting an error at the top of the home page and only the home page, when using wp_debug. The message is not visible with wp_debug disabled.

The error is:

Notice: Trying to get property of non-object in XXXXX/wp-includes/class-wp-query.php on line 3994
Notice: Trying to get property of non-object in XXXXX/wp-includes/class-wp-query.php on line 3996
Notice: Trying to get property of non-object in XXXXX/wp-includes/class-wp-query.php on line 3998
Notice: Trying to get property of non-object in XXXXX/wp-includes/class-wp-query.php on line 3994
Notice: Trying to get property of non-object in XXXXX/wp-includes/class-wp-query.php on line 3996
Notice: Trying to get property of non-object in XXXXX/wp-includes/class-wp-query.php on line 3998

I'm pretty sure it is due to me using 'is_front_page()' and 'is_page(89)' but I can't work out why I only get the error on the home page. It is working fine and there is no error message on the page: is_page(89).

When I added in the second if statement in the align_add_logo_filters() function it doubled the error output.

The code I am including at the top of my functions.php is:

<?php
/**
 * GeneratePress child theme functions and definitions.
 *
 * Add your custom PHP in this file. 
 * Only edit this file if you have direct access to it on your server (to fix errors if they happen).
 */

include('includes/partials.php');
include('includes/hooks-n-filters.php');

The code in my 'hooks-n-filters.php' file is:

<?php
global $post;

//Swap Navigation logo on homepage for white one.

//Build the filter but it will not work by checking the homepage as it needs to be parsed first
if ( ! function_exists( 'align_change_navigation_logo_output' ) ) {

	function align_change_navigation_logo_output( $output ) {
	  
	  return sprintf(
                '<!--standard generatepress logo code-->',
		esc_url( 'Image_URL' ),
		esc_attr( apply_filters( 'generate_logo_title', get_bloginfo( 'name', 'display' ) ) )
	  );
	}
  }

if ( ! function_exists( 'align_change_navigation_logo_output_music_change' ) ) {

    function align_change_navigation_logo_output_music_change( $output ) {
    
    return sprintf(
        '<!--standard generatepress logo code-->',
        esc_url( 'Image_URL' ),
        esc_attr( apply_filters( 'generate_logo_title', get_bloginfo( 'name', 'display' ) ) ), 
        esc_url( apply_filters( 'generate_logo_href' , home_url( '/' ) ) )
    );
    }

}
  
  //add action to parse
  
  add_action( 'parse_query', 'align_add_logo_filters' ); 

  function align_add_logo_filters() {
    
	  if ( is_front_page() ) {
        add_filter( 'generate_navigation_logo_output', 'align_change_navigation_logo_output' );
	  } else if ( is_page( 89 ) ) {
        add_filter( 'generate_navigation_logo_output', 'align_change_navigation_logo_output_music_change' );
      } 
  
  }

Also if there is a smart way to combine the two filters 'align_change_navigation_logo_output' and 'align_change_navigation_logo_output_music_change' I would appreciate any hints/tips.

BTW awesome theme I use it a lot.

Cheers