Hi,
I’m merely reporting here, as I’ve seen other folks on various threads talking about problems with the Envira plugin. In case it helps identify or narrow down an issue, here’s what I experienced…
I updated X successfully yesterday (10/27/17) to 5.2.3; no problems at all. Today I tried to install Envira for the first time from within the X dashboard, No bueno. The plugin installed, but when I tried to activate it, I got a PHP error and had to delete the envira plugin directly via FTP to even be able to access wp-admin. I just needed a simple image gallery for one page, so switched to installing Essential Grid. That worked like a charm.
BOTTOM LINE: my experience suggests to me that there’s something wrong with the Envira Plugin and the new version of X.