I'm having trouble with the post grid pro plugin, since a couple of weeks ago, the page that contains the grid shows a 503 error and never loads. If i deactivate the pro plugin, eeverything works fine so it has to be issue. How can I fix this?
Welcome to our forum.
Could you please enable debug log and check the message on debug.log file when the issue is happening.
Also please check another issue, if post grid loop contains the post where you are displaying the post grid might causing the issue. you may exclude the current post id where the post grid is displaying.