when I develope some plugins I need to debug it, but if I enable wp debug, display error, script error, I can’t see any error on page but only a blank page; this issue happen in original themes update or child theme.
Any idea ? Is not hosting problem, because WP write error in a log files but I cant’ see it.
I’ve run into this before – it’s usually a server configuration issue when it comes to the error_log() function in PHP.
Have you checked if things are printing to the deblog.log file in the wp-content folder? I believe that’s WP_DEBUG_LOG – it’s my favorite debugging method in WP.