WP Automatic Upgrade broke some pages (white screen)

The other day WordPress automatically upgraded me to 4.1.2 and now some of my pages are broken.

They are showing a white screen when I go to view them, but all the CSS/HTML is still there and links can be clicked and whatnot. Only if I reload the page does it work properly. It makes no sense and is sure to be confusing for others viewing the site.

I asked my host and then they tried to upgrade to WP 4.2 which broke the site completely (error establishing database connection). So we reverted back to our latest backup…and this page issue is still here.

Here are some pages in question:

This page is sometimes not working:https://invigoratenow.com/how-invigoratenow-helps-preferred-customer-club-v3-product/

This page is not working unless I force reload it: https://invigoratenow.com/how-invigoratenow-helps-preferred-customer-club-v3-product-tyler/

This page is not working unless I force reload it: https://invigoratenow.com/how-invigoratenow-helps-v4/

Does any know what I can do to fix this and make it work properly on the first view (and not after refreshing the page)?

Thanks so much!