Originally Posted by vvvvv

Using Jetpack plugin?

If so, make sure to update it first. The two don't mix well if you are using a previous version of Jetpack.

Also, when receiving a 500 error check to see if static files load. Like images. Yes? Then it is Wordpress.

Next, rename Jetpack to something else. Like Jetpack2. Does it load fine? Then it was Jetpack. If not? Rename the entire plugins directory to something else.

Good? It was another plugin. Bad? Now rename your current theme.

Keep working... you will find it.


But for the OP, it is Jetpack if you have it installed.