Since yesterday, every page that calls a post grid shortcode on a staging site I am working on has been giving a 502 bad gateway error. I have been working on this site for a while and never had this problem before, and it is happening on many pages which had no changes made to them and were already working for weeks. The 502 goes away when I take out the post grid call on the pages, but of course the post grid is needed on these pages. Is there an outage of any sort? Are you familar with why this might be happening?
Welcome to PickPlugins.
Please check the version number of your Post Grid Combo plugin. Try to update to the latest version. And if possible, please delete our plugin and then reinstall it from the link below. Don't worry you'll not lose your data.
The latest version of post grid combo - https://downloads.wordpress.org/plugin/post-grid.2.2.60.zip
If it still doesn't help, please try to remember what changes you've made recently that might cause this issue.