Website does not work after theme and plugin updates

Dear support team,

after several updates http://www.eskadi.com does not work correctly altough content is not lost. Everything is correct just that site is not displayed correctly i.e.:
1) On all pages only revolution slider is displaye but not columns with content
2) Page showcase it not displayed anymore
3) language switch to EN and ES is not displayed any more

However going to WP Dashboard everything is correct. Could you pls. give me a hand?