Some posts blank after site migration

I just found a few posts that have blank pages after I migrated my site a week ago. I can’t figure out why, I even tried to create a new post, but even that one is blank! One weird thing I noticed is that they have wrong year/months in their permalinks.

Here is one example (I tried to change the publish date, but that did nothing) https://aftercredits.com/2016/02/batman-v-superman-dawn-justice-mega-post/

And here is a copy of this post that I just made that is also showing blank: https://aftercredits.com/2016/03/batman-v-superman-dawn-of-justice-mega-post/