Fatal error: Call to undefined function views_include() in /htdocs/public/sites/all/modules/ctools/views_content/plugins/conten

Te recomiendo regresar a tu ultimo backup de tu base de datos y remplazar los archivos del modulo views, con la penultima version, la que tenias antes, yo tambien tuve el mismo problema pero no he encontrado la solucion.

Saludos

This just happened to me on my test site. For some weird reason my views module went missing so I downloaded it again. I was still getting a similar error message regarding views content so I disabled the "views content" module and re-enabled it and the error went away. Hope this helps someone.