Fix http error in wordpress while uploading media

1 add function.php

function wpb_image_editor_default_to_gd( $editors ) {

    $gd_editor = 'WP_Image_Editor_GD';

    $editors = array_diff( $editors, array( $gd_editor ) );

    array_unshift( $editors, $gd_editor );

    return $editors;

}

add_filter( 'wp_image_editors', 'wpb_image_editor_default_to_gd' );