Wordpress error funcion fopen

[alfo1694]

Hola tengo un problema con wordpress...
Mude la pagina de un hosting a otro y me sale un error que no permite editar nada todo lo que pongo editar aparece en blanco.

Warning: fopen(/home/******/public_html/wp-content/plugins/ubermenu/ubermenu.php): failed to open stream: No such file or directory in /home/******/public_html/wp-includes/functions.php on line 4198

Warning: fread() expects parameter 1 to be resource, boolean given in /home/******/public_html/wp-includes/functions.php on line 4201

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/******/public_html/wp-includes/functions.php on line 4204

Código:

function get_file_data( $file, $default_headers, $context = '' ) {
	// We don't need to write to the file, so just open for reading.
	$fp = fopen( $file, 'r' );

	// Pull only the first 8kiB of the file in.
	$file_data = fread( $fp, 8192 );

	// PHP will close file handle, but we are good citizens.
	fclose( $fp );

	// Make sure we catch CR-only line endings.
	$file_data = str_replace( "\r", "\n", $file_data );

	/**
	 * Filter extra file headers by context.
	 *
	 * The dynamic portion of the hook name, $context, refers to the context
	 * where extra headers might be loaded.
	 *
	 * @since 2.9.0
	 *
	 * @param array $extra_context_headers Empty array by default.
	 */
	if ( $context && $extra_headers = apply_filters( "extra_{$context}_headers", array() ) ) {
		$extra_headers = array_combine( $extra_headers, $extra_headers ); // keys equal values
		$all_headers = array_merge( $extra_headers, (array) $default_headers );
	} else {
		$all_headers = $default_headers;
	}

	foreach ( $all_headers as $field => $regex ) {
		if ( preg_match( '/^[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] )
			$all_headers[ $field ] = _cleanup_header_comment( $match[1] );
		else
			$all_headers[ $field ] = '';
	}

	return $all_headers;
}