Comment on Technical Support by SEO Dave.
Not had any Stallion Responsive 8.4 bug reports beyond ones I’d already found: have an issue with Gravatars not being cached, will be fixed in Stallion Responsive 8.5, testing the 8.5 update on live sites now.
It would appear the recent W3 Total Cache Plugin Version 0.9.5 has multiple bugs.
So far I’ve updated W3 Total Cache to 0.9.5 on two of my sites (this is one of them) and I got an error when trying to upload images into a post on this site (the other site is fine both on the same server as well).
[29-Sep-2016 11:44:02] PHP Warning: require(/home/######/public_html/wp-content/plugins/w3-total-cache/stdClass.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in /home/######/public_html/wp-content/plugins/w3-total-cache/w3-total-cache-api.php on line 161 [29-Sep-2016 11:44:02] PHP Fatal error: require() [<a href='function.require'>function.require</a>]: Failed opening required '/home/######/public_html/wp-content/plugins/w3-total-cache/stdClass.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/######/public_html/wp-content/plugins/w3-total-cache/w3-total-cache-api.php on line 161
Fortunately it doesn’t take the site out (not white screen) which you tend to get with PHP Fatal Errors. Though my quick manual downgrade to W3 Total Cache 0.9.4 did white screen this site, had to reupload the 0.9.5 files to get the site back online quickly.
My image issue might be (not 100% sure yet) related to the W3 Total Cache Plugin Version 0.9.5 update, their support forum is filled with complaints right now.
I’m still debugging my issue with the caching plugin. Going to wait for the plugin to be updated again before updating the rest of my network, from the WordPress forum it sounds like it’s not a good update. Don’t want to loose W3 Total Cache, it’s one of the few WordPress plugins I consider an SEO plugin (highly recommended).