Something weird in the blog

hi there
I set some values in the blog, but some articles goes well, but some others have issues in the presentation of the titles, or the body of the article, for example i have this news with the front end well:
http://luisfvaciero.es/2017/03/08/publicado-en-prensa/ or
http://luisfvaciero.es/2017/02/24/presentacion-en-gijon-7-de-febrero-de-2017/

But this others goes with the front end wrong:
http://luisfvaciero.es/2017/03/07/presentacion-en-salamanca-y-valladolid/ or
http://luisfvaciero.es/2017/03/07/nieves-herrero-se-encargo-de-la-presentacion-de-sera-porque-te-amo-en-madrid/

the subsite is sera porque te amo or vaci.diegodiezcorral.com