What happens to sql213.byetcluster.com

You’re going to have to be a bit more specific than that. I’m not aware of any problems with that database server. I also don’t know if the problems you’re having have to do with data corruption (which you seem to say is the case), or whether it’s database related in the first place.

This only says that there is a problem with the database connection. It could be anything. Please enable WP_DEBUG mode and refresh the page to see the actual error message, and be sure to compare it to this article too.

This is a consequence of how SSL is implemented on free hosting. Jetpack is known to not work with it, so we recommend against using Jetpack:

This is the same error as above.