400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=Arrêts+du+Grand+Conseil+S.+M.+I.+et+R.+séant+ville+Malines+...+jean-alphonse+comte+coloma because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.