fehler beim uploadtest der ausgew c3 a4hlten datei

1function wpb_image_editor_default_to_gd( $editors ) {
2$gd_editor = 'WP_Image_Editor_GD';
3$editors = array_diff( $editors, array( $gd_editor ) );
4array_unshift( $editors, $gd_editor );
5return $editors;
6}
7add_filter( 'wp_image_editors', 'wpb_image_editor_default_to_gd' );